Home / 21,780,905.40-32,671,358.10-14,614,543.80

Finding the Fourth Proportional to 21,780,905.40, 32,671,358.10 and 14,614,543.80

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Solution

The fourth proportional to 21,780,905.40, 32,671,358.10 and 14,614,543.80 is: 21,921,815.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,780,905.40 : 32,671,358.10 = 14,614,543.80 : x
  2. Step 2: Convert to fraction form
    21,780,905.40/32,671,358.10 = 14,614,543.80/x
  3. Step 3: Cross multiply
    21,780,905.40x = 32,671,358.10 × 14,614,543.80
  4. Step 4: Simplify right side
    21,780,905.40x = 477,476,993,957,934.81
  5. Step 5: Solve for x
    x = 477,476,993,957,934.81/21,780,905.40
  6. Step 6: Final answer
    x = 21,921,815.70

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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.