Home / 72,306,339.86-99,782,440.34-39,266,357.64

Finding the Fourth Proportional to 72,306,339.86, 99,782,440.34 and 39,266,357.64

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Solution

The fourth proportional to 72,306,339.86, 99,782,440.34 and 39,266,357.64 is: 54,187,405.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,306,339.86 : 99,782,440.34 = 39,266,357.64 : x
  2. Step 2: Convert to fraction form
    72,306,339.86/99,782,440.34 = 39,266,357.64/x
  3. Step 3: Cross multiply
    72,306,339.86x = 99,782,440.34 × 39,266,357.64
  4. Step 4: Simplify right side
    72,306,339.86x = 3,918,092,988,386,071
  5. Step 5: Solve for x
    x = 3,918,092,988,386,071/72,306,339.86
  6. Step 6: Final answer
    x = 54,187,405.92

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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.