Home / 807,057,715.10-1,210,586,572.65-261,799,249.10

Finding the Fourth Proportional to 807,057,715.10, 1,210,586,572.65 and 261,799,249.10

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Solution

The fourth proportional to 807,057,715.10, 1,210,586,572.65 and 261,799,249.10 is: 392,698,873.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,057,715.10 : 1,210,586,572.65 = 261,799,249.10 : x
  2. Step 2: Convert to fraction form
    807,057,715.10/1,210,586,572.65 = 261,799,249.10/x
  3. Step 3: Cross multiply
    807,057,715.10x = 1,210,586,572.65 × 261,799,249.10
  4. Step 4: Simplify right side
    807,057,715.10x = 316,930,655,690,312,640
  5. Step 5: Solve for x
    x = 316,930,655,690,312,640/807,057,715.10
  6. Step 6: Final answer
    x = 392,698,873.65

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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.