Home / 72,873,347.98-100,565,213.01-39,833,729.86

Finding the Fourth Proportional to 72,873,347.98, 100,565,213.01 and 39,833,729.86

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Solution

The fourth proportional to 72,873,347.98, 100,565,213.01 and 39,833,729.86 is: 54,970,543.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,873,347.98 : 100,565,213.01 = 39,833,729.86 : x
  2. Step 2: Convert to fraction form
    72,873,347.98/100,565,213.01 = 39,833,729.86/x
  3. Step 3: Cross multiply
    72,873,347.98x = 100,565,213.01 × 39,833,729.86
  4. Step 4: Simplify right side
    72,873,347.98x = 4,005,887,528,353,697.50
  5. Step 5: Solve for x
    x = 4,005,887,528,353,697.50/72,873,347.98
  6. Step 6: Final answer
    x = 54,970,543.27

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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.