Home / 129,589,538.52-178,833,884.70-70,855,993.56

Finding the Fourth Proportional to 129,589,538.52, 178,833,884.70 and 70,855,993.56

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Solution

The fourth proportional to 129,589,538.52, 178,833,884.70 and 70,855,993.56 is: 97,781,446.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,589,538.52 : 178,833,884.70 = 70,855,993.56 : x
  2. Step 2: Convert to fraction form
    129,589,538.52/178,833,884.70 = 70,855,993.56/x
  3. Step 3: Cross multiply
    129,589,538.52x = 178,833,884.70 × 70,855,993.56
  4. Step 4: Simplify right side
    129,589,538.52x = 12,671,452,582,612,982
  5. Step 5: Solve for x
    x = 12,671,452,582,612,982/129,589,538.52
  6. Step 6: Final answer
    x = 97,781,446.92

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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.