Home / 90,418,228.20-135,658,835.10-39,336,906.60

Finding the Fourth Proportional to 90,418,228.20, 135,658,835.10 and 39,336,906.60

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Solution

The fourth proportional to 90,418,228.20, 135,658,835.10 and 39,336,906.60 is: 59,019,061.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,418,228.20 : 135,658,835.10 = 39,336,906.60 : x
  2. Step 2: Convert to fraction form
    90,418,228.20/135,658,835.10 = 39,336,906.60/x
  3. Step 3: Cross multiply
    90,418,228.20x = 135,658,835.10 × 39,336,906.60
  4. Step 4: Simplify right side
    90,418,228.20x = 5,336,398,925,793,502
  5. Step 5: Solve for x
    x = 5,336,398,925,793,502/90,418,228.20
  6. Step 6: Final answer
    x = 59,019,061.00

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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.