Home / 72,744,515.15-100,518,745.71-51,800,186.13

Finding the Fourth Proportional to 72,744,515.15, 100,518,745.71 and 51,800,186.13

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Solution

The fourth proportional to 72,744,515.15, 100,518,745.71 and 51,800,186.13 is: 71,577,764.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,744,515.15 : 100,518,745.71 = 51,800,186.13 : x
  2. Step 2: Convert to fraction form
    72,744,515.15/100,518,745.71 = 51,800,186.13/x
  3. Step 3: Cross multiply
    72,744,515.15x = 100,518,745.71 × 51,800,186.13
  4. Step 4: Simplify right side
    72,744,515.15x = 5,206,889,737,332,139
  5. Step 5: Solve for x
    x = 5,206,889,737,332,139/72,744,515.15
  6. Step 6: Final answer
    x = 71,577,764.00

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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.