Home / 72,306,336.05-99,782,435.22-39,266,353.83

Finding the Fourth Proportional to 72,306,336.05, 99,782,435.22 and 39,266,353.83

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Solution

The fourth proportional to 72,306,336.05, 99,782,435.22 and 39,266,353.83 is: 54,187,400.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,306,336.05 : 99,782,435.22 = 39,266,353.83 : x
  2. Step 2: Convert to fraction form
    72,306,336.05/99,782,435.22 = 39,266,353.83/x
  3. Step 3: Cross multiply
    72,306,336.05x = 99,782,435.22 × 39,266,353.83
  4. Step 4: Simplify right side
    72,306,336.05x = 3,918,092,407,594,509.50
  5. Step 5: Solve for x
    x = 3,918,092,407,594,509.50/72,306,336.05
  6. Step 6: Final answer
    x = 54,187,400.74

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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.