Home / 686,553,231,022.45-1,029,829,846,533.70-209,018,736,281.02

Finding the Fourth Proportional to 686,553,231,022.45, 1,029,829,846,533.70 and 209,018,736,281.02

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Solution

The fourth proportional to 686,553,231,022.45, 1,029,829,846,533.70 and 209,018,736,281.02 is: 313,528,104,421.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,553,231,022.45 : 1,029,829,846,533.70 = 209,018,736,281.02 : x
  2. Step 2: Convert to fraction form
    686,553,231,022.45/1,029,829,846,533.70 = 209,018,736,281.02/x
  3. Step 3: Cross multiply
    686,553,231,022.45x = 1,029,829,846,533.70 × 209,018,736,281.02
  4. Step 4: Simplify right side
    686,553,231,022.45x = 215,253,733,106,950,715,998,208
  5. Step 5: Solve for x
    x = 215,253,733,106,950,715,998,208/686,553,231,022.45
  6. Step 6: Final answer
    x = 313,528,104,421.54

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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.