Home / 72,470,394-99,976,189.68-43,085,052.90

Finding the Fourth Proportional to 72,470,394, 99,976,189.68 and 43,085,052.90

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Solution

The fourth proportional to 72,470,394, 99,976,189.68 and 43,085,052.90 is: 59,437,781.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,470,394 : 99,976,189.68 = 43,085,052.90 : x
  2. Step 2: Convert to fraction form
    72,470,394/99,976,189.68 = 43,085,052.90/x
  3. Step 3: Cross multiply
    72,470,394x = 99,976,189.68 × 43,085,052.90
  4. Step 4: Simplify right side
    72,470,394x = 4,307,479,421,103,234
  5. Step 5: Solve for x
    x = 4,307,479,421,103,234/72,470,394
  6. Step 6: Final answer
    x = 59,437,781.19

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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.