Home / 917,732,125.28-1,266,470,515.12-500,044,410.56

Finding the Fourth Proportional to 917,732,125.28, 1,266,470,515.12 and 500,044,410.56

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Solution

The fourth proportional to 917,732,125.28, 1,266,470,515.12 and 500,044,410.56 is: 690,061,385.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,732,125.28 : 1,266,470,515.12 = 500,044,410.56 : x
  2. Step 2: Convert to fraction form
    917,732,125.28/1,266,470,515.12 = 500,044,410.56/x
  3. Step 3: Cross multiply
    917,732,125.28x = 1,266,470,515.12 × 500,044,410.56
  4. Step 4: Simplify right side
    917,732,125.28x = 633,291,502,224,799,872
  5. Step 5: Solve for x
    x = 633,291,502,224,799,872/917,732,125.28
  6. Step 6: Final answer
    x = 690,061,385.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.