Home / 21,014,148.60-31,521,222.90-7,382,686.95

Finding the Fourth Proportional to 21,014,148.60, 31,521,222.90 and 7,382,686.95

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Solution

The fourth proportional to 21,014,148.60, 31,521,222.90 and 7,382,686.95 is: 11,074,030.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014,148.60 : 31,521,222.90 = 7,382,686.95 : x
  2. Step 2: Convert to fraction form
    21,014,148.60/31,521,222.90 = 7,382,686.95/x
  3. Step 3: Cross multiply
    21,014,148.60x = 31,521,222.90 × 7,382,686.95
  4. Step 4: Simplify right side
    21,014,148.60x = 232,711,320,951,871.16
  5. Step 5: Solve for x
    x = 232,711,320,951,871.16/21,014,148.60
  6. Step 6: Final answer
    x = 11,074,030.43

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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.