Home / 129,818,474.40-179,148,837.60-71,080,072.32

Finding the Fourth Proportional to 129,818,474.40, 179,148,837.60 and 71,080,072.32

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Solution

The fourth proportional to 129,818,474.40, 179,148,837.60 and 71,080,072.32 is: 98,090,140.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,818,474.40 : 179,148,837.60 = 71,080,072.32 : x
  2. Step 2: Convert to fraction form
    129,818,474.40/179,148,837.60 = 71,080,072.32/x
  3. Step 3: Cross multiply
    129,818,474.40x = 179,148,837.60 × 71,080,072.32
  4. Step 4: Simplify right side
    129,818,474.40x = 12,733,912,332,651,934
  5. Step 5: Solve for x
    x = 12,733,912,332,651,934/129,818,474.40
  6. Step 6: Final answer
    x = 98,090,140.03

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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.