Home / 21,014,149.60-31,521,224.40-7,382,687.95

Finding the Fourth Proportional to 21,014,149.60, 31,521,224.40 and 7,382,687.95

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Solution

The fourth proportional to 21,014,149.60, 31,521,224.40 and 7,382,687.95 is: 11,074,031.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014,149.60 : 31,521,224.40 = 7,382,687.95 : x
  2. Step 2: Convert to fraction form
    21,014,149.60/31,521,224.40 = 7,382,687.95/x
  3. Step 3: Cross multiply
    21,014,149.60x = 31,521,224.40 × 7,382,687.95
  4. Step 4: Simplify right side
    21,014,149.60x = 232,711,363,547,125.97
  5. Step 5: Solve for x
    x = 232,711,363,547,125.97/21,014,149.60
  6. Step 6: Final answer
    x = 11,074,031.93

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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.