Home / 922,691,457.50-1,273,309,628.49-499,304,820.38

Finding the Fourth Proportional to 922,691,457.50, 1,273,309,628.49 and 499,304,820.38

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Solution

The fourth proportional to 922,691,457.50, 1,273,309,628.49 and 499,304,820.38 is: 689,038,172.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,691,457.50 : 1,273,309,628.49 = 499,304,820.38 : x
  2. Step 2: Convert to fraction form
    922,691,457.50/1,273,309,628.49 = 499,304,820.38/x
  3. Step 3: Cross multiply
    922,691,457.50x = 1,273,309,628.49 × 499,304,820.38
  4. Step 4: Simplify right side
    922,691,457.50x = 635,769,635,334,957,440
  5. Step 5: Solve for x
    x = 635,769,635,334,957,440/922,691,457.50
  6. Step 6: Final answer
    x = 689,038,172.15

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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.