Home / 90,207,309.74-124,421,767.44-82,788,874.52

Finding the Fourth Proportional to 90,207,309.74, 124,421,767.44 and 82,788,874.52

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Solution

The fourth proportional to 90,207,309.74, 124,421,767.44 and 82,788,874.52 is: 114,189,616.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,207,309.74 : 124,421,767.44 = 82,788,874.52 : x
  2. Step 2: Convert to fraction form
    90,207,309.74/124,421,767.44 = 82,788,874.52/x
  3. Step 3: Cross multiply
    90,207,309.74x = 124,421,767.44 × 82,788,874.52
  4. Step 4: Simplify right side
    90,207,309.74x = 10,300,738,092,146,780
  5. Step 5: Solve for x
    x = 10,300,738,092,146,780/90,207,309.74
  6. Step 6: Final answer
    x = 114,189,616.36

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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.