Home / 812,013,737.41-1,120,386,877.33-459,589,728.12

Finding the Fourth Proportional to 812,013,737.41, 1,120,386,877.33 and 459,589,728.12

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Solution

The fourth proportional to 812,013,737.41, 1,120,386,877.33 and 459,589,728.12 is: 634,125,109.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,013,737.41 : 1,120,386,877.33 = 459,589,728.12 : x
  2. Step 2: Convert to fraction form
    812,013,737.41/1,120,386,877.33 = 459,589,728.12/x
  3. Step 3: Cross multiply
    812,013,737.41x = 1,120,386,877.33 × 459,589,728.12
  4. Step 4: Simplify right side
    812,013,737.41x = 514,918,300,341,310,464
  5. Step 5: Solve for x
    x = 514,918,300,341,310,464/812,013,737.41
  6. Step 6: Final answer
    x = 634,125,109.73

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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.