Home / 91,107,002.40-136,590,519.60-45,701,383.20

Finding the Fourth Proportional to 91,107,002.40, 136,590,519.60 and 45,701,383.20

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Solution

The fourth proportional to 91,107,002.40, 136,590,519.60 and 45,701,383.20 is: 68,516,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,107,002.40 : 136,590,519.60 = 45,701,383.20 : x
  2. Step 2: Convert to fraction form
    91,107,002.40/136,590,519.60 = 45,701,383.20/x
  3. Step 3: Cross multiply
    91,107,002.40x = 136,590,519.60 × 45,701,383.20
  4. Step 4: Simplify right side
    91,107,002.40x = 6,242,375,677,726,711
  5. Step 5: Solve for x
    x = 6,242,375,677,726,711/91,107,002.40
  6. Step 6: Final answer
    x = 68,516,969.20

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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.