Home / 72,777,704.32-100,421,374.80-43,004,209.44

Finding the Fourth Proportional to 72,777,704.32, 100,421,374.80 and 43,004,209.44

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Solution

The fourth proportional to 72,777,704.32, 100,421,374.80 and 43,004,209.44 is: 59,338,802.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,777,704.32 : 100,421,374.80 = 43,004,209.44 : x
  2. Step 2: Convert to fraction form
    72,777,704.32/100,421,374.80 = 43,004,209.44/x
  3. Step 3: Cross multiply
    72,777,704.32x = 100,421,374.80 × 43,004,209.44
  4. Step 4: Simplify right side
    72,777,704.32x = 4,318,541,834,151,937.50
  5. Step 5: Solve for x
    x = 4,318,541,834,151,937.50/72,777,704.32
  6. Step 6: Final answer
    x = 59,338,802.65

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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.