Home / 98,288,380.60-147,716,006.10-85,817,231.80

Finding the Fourth Proportional to 98,288,380.60, 147,716,006.10 and 85,817,231.80

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Solution

The fourth proportional to 98,288,380.60, 147,716,006.10 and 85,817,231.80 is: 128,973,319.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,288,380.60 : 147,716,006.10 = 85,817,231.80 : x
  2. Step 2: Convert to fraction form
    98,288,380.60/147,716,006.10 = 85,817,231.80/x
  3. Step 3: Cross multiply
    98,288,380.60x = 147,716,006.10 × 85,817,231.80
  4. Step 4: Simplify right side
    98,288,380.60x = 12,676,578,736,053,914
  5. Step 5: Solve for x
    x = 12,676,578,736,053,914/98,288,380.60
  6. Step 6: Final answer
    x = 128,973,319.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.