Home / 686,553,231,022.70-1,029,829,846,534.10-209,018,736,281.27

Finding the Fourth Proportional to 686,553,231,022.70, 1,029,829,846,534.10 and 209,018,736,281.27

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Solution

The fourth proportional to 686,553,231,022.70, 1,029,829,846,534.10 and 209,018,736,281.27 is: 313,528,104,421.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,553,231,022.70 : 1,029,829,846,534.10 = 209,018,736,281.27 : x
  2. Step 2: Convert to fraction form
    686,553,231,022.70/1,029,829,846,534.10 = 209,018,736,281.27/x
  3. Step 3: Cross multiply
    686,553,231,022.70x = 1,029,829,846,534.10 × 209,018,736,281.27
  4. Step 4: Simplify right side
    686,553,231,022.70x = 215,253,733,107,291,796,799,488
  5. Step 5: Solve for x
    x = 215,253,733,107,291,796,799,488/686,553,231,022.70
  6. Step 6: Final answer
    x = 313,528,104,421.92

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Double scale
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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.