Home / 42,376,718.10-63,565,077.15-20,825,145.30

Finding the Fourth Proportional to 42,376,718.10, 63,565,077.15 and 20,825,145.30

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Solution

The fourth proportional to 42,376,718.10, 63,565,077.15 and 20,825,145.30 is: 31,237,717.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,376,718.10 : 63,565,077.15 = 20,825,145.30 : x
  2. Step 2: Convert to fraction form
    42,376,718.10/63,565,077.15 = 20,825,145.30/x
  3. Step 3: Cross multiply
    42,376,718.10x = 63,565,077.15 × 20,825,145.30
  4. Step 4: Simplify right side
    42,376,718.10x = 1,323,751,967,654,460
  5. Step 5: Solve for x
    x = 1,323,751,967,654,460/42,376,718.10
  6. Step 6: Final answer
    x = 31,237,717.95

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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.