Home / 686,553,231,201.67-1,029,829,846,802.50-209,018,736,460.30

Finding the Fourth Proportional to 686,553,231,201.67, 1,029,829,846,802.50 and 209,018,736,460.30

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Solution

The fourth proportional to 686,553,231,201.67, 1,029,829,846,802.50 and 209,018,736,460.30 is: 313,528,104,690.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,553,231,201.67 : 1,029,829,846,802.50 = 209,018,736,460.30 : x
  2. Step 2: Convert to fraction form
    686,553,231,201.67/1,029,829,846,802.50 = 209,018,736,460.30/x
  3. Step 3: Cross multiply
    686,553,231,201.67x = 1,029,829,846,802.50 × 209,018,736,460.30
  4. Step 4: Simplify right side
    686,553,231,201.67x = 215,253,733,347,762,854,952,960
  5. Step 5: Solve for x
    x = 215,253,733,347,762,854,952,960/686,553,231,201.67
  6. Step 6: Final answer
    x = 313,528,104,690.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.