Home / 77,873,722.07-116,801,660.15-20,371,543.43

Finding the Fourth Proportional to 77,873,722.07, 116,801,660.15 and 20,371,543.43

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Solution

The fourth proportional to 77,873,722.07, 116,801,660.15 and 20,371,543.43 is: 30,554,980.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,873,722.07 : 116,801,660.15 = 20,371,543.43 : x
  2. Step 2: Convert to fraction form
    77,873,722.07/116,801,660.15 = 20,371,543.43/x
  3. Step 3: Cross multiply
    77,873,722.07x = 116,801,660.15 × 20,371,543.43
  4. Step 4: Simplify right side
    77,873,722.07x = 2,379,430,092,339,967.50
  5. Step 5: Solve for x
    x = 2,379,430,092,339,967.50/77,873,722.07
  6. Step 6: Final answer
    x = 30,554,980.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.