Home / 137,120,998.56-189,230,445.72-75,241,320.72

Finding the Fourth Proportional to 137,120,998.56, 189,230,445.72 and 75,241,320.72

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Solution

The fourth proportional to 137,120,998.56, 189,230,445.72 and 75,241,320.72 is: 103,834,925.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,120,998.56 : 189,230,445.72 = 75,241,320.72 : x
  2. Step 2: Convert to fraction form
    137,120,998.56/189,230,445.72 = 75,241,320.72/x
  3. Step 3: Cross multiply
    137,120,998.56x = 189,230,445.72 × 75,241,320.72
  4. Step 4: Simplify right side
    137,120,998.56x = 14,237,948,656,407,072
  5. Step 5: Solve for x
    x = 14,237,948,656,407,072/137,120,998.56
  6. Step 6: Final answer
    x = 103,834,925.40

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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.