Home / 129,023,925.60-178,052,938.83-71,077,173.60

Finding the Fourth Proportional to 129,023,925.60, 178,052,938.83 and 71,077,173.60

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Solution

The fourth proportional to 129,023,925.60, 178,052,938.83 and 71,077,173.60 is: 98,086,456.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,023,925.60 : 178,052,938.83 = 71,077,173.60 : x
  2. Step 2: Convert to fraction form
    129,023,925.60/178,052,938.83 = 71,077,173.60/x
  3. Step 3: Cross multiply
    129,023,925.60x = 178,052,938.83 × 71,077,173.60
  4. Step 4: Simplify right side
    129,023,925.60x = 12,655,499,643,210,090
  5. Step 5: Solve for x
    x = 12,655,499,643,210,090/129,023,925.60
  6. Step 6: Final answer
    x = 98,086,456.32

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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.