Home / 72,306,347.86-99,782,451.38-39,266,365.64

Finding the Fourth Proportional to 72,306,347.86, 99,782,451.38 and 39,266,365.64

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Solution

The fourth proportional to 72,306,347.86, 99,782,451.38 and 39,266,365.64 is: 54,187,416.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,306,347.86 : 99,782,451.38 = 39,266,365.64 : x
  2. Step 2: Convert to fraction form
    72,306,347.86/99,782,451.38 = 39,266,365.64/x
  3. Step 3: Cross multiply
    72,306,347.86x = 99,782,451.38 × 39,266,365.64
  4. Step 4: Simplify right side
    72,306,347.86x = 3,918,094,220,342,602.50
  5. Step 5: Solve for x
    x = 3,918,094,220,342,602.50/72,306,347.86
  6. Step 6: Final answer
    x = 54,187,416.96

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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.