Home / 424,708,127.13-636,413,219.90-286,020,921.81

Finding the Fourth Proportional to 424,708,127.13, 636,413,219.90 and 286,020,921.81

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Solution

The fourth proportional to 424,708,127.13, 636,413,219.90 and 286,020,921.81 is: 428,594,331.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,708,127.13 : 636,413,219.90 = 286,020,921.81 : x
  2. Step 2: Convert to fraction form
    424,708,127.13/636,413,219.90 = 286,020,921.81/x
  3. Step 3: Cross multiply
    424,708,127.13x = 636,413,219.90 × 286,020,921.81
  4. Step 4: Simplify right side
    424,708,127.13x = 182,027,495,806,438,112
  5. Step 5: Solve for x
    x = 182,027,495,806,438,112/424,708,127.13
  6. Step 6: Final answer
    x = 428,594,331.44

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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.