Home / 90,645,477.30-125,086,847.13-51,487,132.14

Finding the Fourth Proportional to 90,645,477.30, 125,086,847.13 and 51,487,132.14

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Solution

The fourth proportional to 90,645,477.30, 125,086,847.13 and 51,487,132.14 is: 71,050,020.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,645,477.30 : 125,086,847.13 = 51,487,132.14 : x
  2. Step 2: Convert to fraction form
    90,645,477.30/125,086,847.13 = 51,487,132.14/x
  3. Step 3: Cross multiply
    90,645,477.30x = 125,086,847.13 × 51,487,132.14
  4. Step 4: Simplify right side
    90,645,477.30x = 6,440,363,027,158,290
  5. Step 5: Solve for x
    x = 6,440,363,027,158,290/90,645,477.30
  6. Step 6: Final answer
    x = 71,050,020.57

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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.