Home / 280,368,001.30-420,552,001.95-159,435,649.30

Finding the Fourth Proportional to 280,368,001.30, 420,552,001.95 and 159,435,649.30

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Solution

The fourth proportional to 280,368,001.30, 420,552,001.95 and 159,435,649.30 is: 239,153,473.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,368,001.30 : 420,552,001.95 = 159,435,649.30 : x
  2. Step 2: Convert to fraction form
    280,368,001.30/420,552,001.95 = 159,435,649.30/x
  3. Step 3: Cross multiply
    280,368,001.30x = 420,552,001.95 × 159,435,649.30
  4. Step 4: Simplify right side
    280,368,001.30x = 67,050,981,495,313,120
  5. Step 5: Solve for x
    x = 67,050,981,495,313,120/280,368,001.30
  6. Step 6: Final answer
    x = 239,153,473.95

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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.