Home / 28,011,450.38-38,687,688.18-18,828,149.90

Finding the Fourth Proportional to 28,011,450.38, 38,687,688.18 and 18,828,149.90

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Solution

The fourth proportional to 28,011,450.38, 38,687,688.18 and 18,828,149.90 is: 26,004,279.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,011,450.38 : 38,687,688.18 = 18,828,149.90 : x
  2. Step 2: Convert to fraction form
    28,011,450.38/38,687,688.18 = 18,828,149.90/x
  3. Step 3: Cross multiply
    28,011,450.38x = 38,687,688.18 × 18,828,149.90
  4. Step 4: Simplify right side
    28,011,450.38x = 728,417,592,144,059.75
  5. Step 5: Solve for x
    x = 728,417,592,144,059.75/28,011,450.38
  6. Step 6: Final answer
    x = 26,004,279.76

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1.5x scale

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.