Home / 138,523,382.60-207,648,021.90-65,612,010.20

Finding the Fourth Proportional to 138,523,382.60, 207,648,021.90 and 65,612,010.20

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Solution

The fourth proportional to 138,523,382.60, 207,648,021.90 and 65,612,010.20 is: 98,353,100.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,523,382.60 : 207,648,021.90 = 65,612,010.20 : x
  2. Step 2: Convert to fraction form
    138,523,382.60/207,648,021.90 = 65,612,010.20/x
  3. Step 3: Cross multiply
    138,523,382.60x = 207,648,021.90 × 65,612,010.20
  4. Step 4: Simplify right side
    138,523,382.60x = 13,624,204,130,912,624
  5. Step 5: Solve for x
    x = 13,624,204,130,912,624/138,523,382.60
  6. Step 6: Final answer
    x = 98,353,100.21

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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.