Home / 52,780,043.20-79,123,984.80-20,454,001.60

Finding the Fourth Proportional to 52,780,043.20, 79,123,984.80 and 20,454,001.60

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Solution

The fourth proportional to 52,780,043.20, 79,123,984.80 and 20,454,001.60 is: 30,663,144.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,780,043.20 : 79,123,984.80 = 20,454,001.60 : x
  2. Step 2: Convert to fraction form
    52,780,043.20/79,123,984.80 = 20,454,001.60/x
  3. Step 3: Cross multiply
    52,780,043.20x = 79,123,984.80 × 20,454,001.60
  4. Step 4: Simplify right side
    52,780,043.20x = 1,618,402,111,697,575.75
  5. Step 5: Solve for x
    x = 1,618,402,111,697,575.75/52,780,043.20
  6. Step 6: Final answer
    x = 30,663,144.89

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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.