Home / 12,079,711.71-16,664,489.45-7,182,146.65

Finding the Fourth Proportional to 12,079,711.71, 16,664,489.45 and 7,182,146.65

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Solution

The fourth proportional to 12,079,711.71, 16,664,489.45 and 7,182,146.65 is: 9,908,084.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079,711.71 : 16,664,489.45 = 7,182,146.65 : x
  2. Step 2: Convert to fraction form
    12,079,711.71/16,664,489.45 = 7,182,146.65/x
  3. Step 3: Cross multiply
    12,079,711.71x = 16,664,489.45 × 7,182,146.65
  4. Step 4: Simplify right side
    12,079,711.71x = 119,686,807,026,638.94
  5. Step 5: Solve for x
    x = 119,686,807,026,638.94/12,079,711.71
  6. Step 6: Final answer
    x = 9,908,084.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.