Home / 89,423,998.80-134,135,998.20-85,896,805.20

Finding the Fourth Proportional to 89,423,998.80, 134,135,998.20 and 85,896,805.20

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Solution

The fourth proportional to 89,423,998.80, 134,135,998.20 and 85,896,805.20 is: 128,845,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,423,998.80 : 134,135,998.20 = 85,896,805.20 : x
  2. Step 2: Convert to fraction form
    89,423,998.80/134,135,998.20 = 85,896,805.20/x
  3. Step 3: Cross multiply
    89,423,998.80x = 134,135,998.20 × 85,896,805.20
  4. Step 4: Simplify right side
    89,423,998.80x = 11,521,853,707,692,952
  5. Step 5: Solve for x
    x = 11,521,853,707,692,952/89,423,998.80
  6. Step 6: Final answer
    x = 128,845,207.80

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1.5x scale

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.