Home / 18,728,615.15-28,092,958.85-7,219,502.19

Finding the Fourth Proportional to 18,728,615.15, 28,092,958.85 and 7,219,502.19

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Solution

The fourth proportional to 18,728,615.15, 28,092,958.85 and 7,219,502.19 is: 10,829,267.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728,615.15 : 28,092,958.85 = 7,219,502.19 : x
  2. Step 2: Convert to fraction form
    18,728,615.15/28,092,958.85 = 7,219,502.19/x
  3. Step 3: Cross multiply
    18,728,615.15x = 28,092,958.85 × 7,219,502.19
  4. Step 4: Simplify right side
    18,728,615.15x = 202,817,177,941,154.91
  5. Step 5: Solve for x
    x = 202,817,177,941,154.91/18,728,615.15
  6. Step 6: Final answer
    x = 10,829,267.21

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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.