Home / 281,037,129.80-387,822,909.54-155,594,916.52

Finding the Fourth Proportional to 281,037,129.80, 387,822,909.54 and 155,594,916.52

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Solution

The fourth proportional to 281,037,129.80, 387,822,909.54 and 155,594,916.52 is: 214,716,373.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,037,129.80 : 387,822,909.54 = 155,594,916.52 : x
  2. Step 2: Convert to fraction form
    281,037,129.80/387,822,909.54 = 155,594,916.52/x
  3. Step 3: Cross multiply
    281,037,129.80x = 387,822,909.54 × 155,594,916.52
  4. Step 4: Simplify right side
    281,037,129.80x = 60,343,273,234,419,816
  5. Step 5: Solve for x
    x = 60,343,273,234,419,816/281,037,129.80
  6. Step 6: Final answer
    x = 214,716,373.16

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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.