Home / 129,781,921.05-179,099,544.83-71,050,050.63

Finding the Fourth Proportional to 129,781,921.05, 179,099,544.83 and 71,050,050.63

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Solution

The fourth proportional to 129,781,921.05, 179,099,544.83 and 71,050,050.63 is: 98,049,340.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,781,921.05 : 179,099,544.83 = 71,050,050.63 : x
  2. Step 2: Convert to fraction form
    129,781,921.05/179,099,544.83 = 71,050,050.63/x
  3. Step 3: Cross multiply
    129,781,921.05x = 179,099,544.83 × 71,050,050.63
  4. Step 4: Simplify right side
    129,781,921.05x = 12,725,031,727,626,202
  5. Step 5: Solve for x
    x = 12,725,031,727,626,202/129,781,921.05
  6. Step 6: Final answer
    x = 98,049,340.19

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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.