Home / 130,247,486.15-179,741,884.56-71,513,955.50

Finding the Fourth Proportional to 130,247,486.15, 179,741,884.56 and 71,513,955.50

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Solution

The fourth proportional to 130,247,486.15, 179,741,884.56 and 71,513,955.50 is: 98,689,452.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,247,486.15 : 179,741,884.56 = 71,513,955.50 : x
  2. Step 2: Convert to fraction form
    130,247,486.15/179,741,884.56 = 71,513,955.50/x
  3. Step 3: Cross multiply
    130,247,486.15x = 179,741,884.56 × 71,513,955.50
  4. Step 4: Simplify right side
    130,247,486.15x = 12,854,053,133,909,978
  5. Step 5: Solve for x
    x = 12,854,053,133,909,978/130,247,486.15
  6. Step 6: Final answer
    x = 98,689,452.78

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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.