Home / 138,517,408.40-207,776,112.60-36,291,779.60

Finding the Fourth Proportional to 138,517,408.40, 207,776,112.60 and 36,291,779.60

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Solution

The fourth proportional to 138,517,408.40, 207,776,112.60 and 36,291,779.60 is: 54,437,669.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,517,408.40 : 207,776,112.60 = 36,291,779.60 : x
  2. Step 2: Convert to fraction form
    138,517,408.40/207,776,112.60 = 36,291,779.60/x
  3. Step 3: Cross multiply
    138,517,408.40x = 207,776,112.60 × 36,291,779.60
  4. Step 4: Simplify right side
    138,517,408.40x = 7,540,564,884,623,983
  5. Step 5: Solve for x
    x = 7,540,564,884,623,983/138,517,408.40
  6. Step 6: Final answer
    x = 54,437,669.40

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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.