Home / 18,721,818.60-28,082,727.90-15,698,509.80

Finding the Fourth Proportional to 18,721,818.60, 28,082,727.90 and 15,698,509.80

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Solution

The fourth proportional to 18,721,818.60, 28,082,727.90 and 15,698,509.80 is: 23,547,764.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721,818.60 : 28,082,727.90 = 15,698,509.80 : x
  2. Step 2: Convert to fraction form
    18,721,818.60/28,082,727.90 = 15,698,509.80/x
  3. Step 3: Cross multiply
    18,721,818.60x = 28,082,727.90 × 15,698,509.80
  4. Step 4: Simplify right side
    18,721,818.60x = 440,856,979,148,883.44
  5. Step 5: Solve for x
    x = 440,856,979,148,883.44/18,721,818.60
  6. Step 6: Final answer
    x = 23,547,764.70

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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.