Home / 90,985,602.80-136,478,404.20-90,418,732.40

Finding the Fourth Proportional to 90,985,602.80, 136,478,404.20 and 90,418,732.40

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Solution

The fourth proportional to 90,985,602.80, 136,478,404.20 and 90,418,732.40 is: 135,628,098.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,985,602.80 : 136,478,404.20 = 90,418,732.40 : x
  2. Step 2: Convert to fraction form
    90,985,602.80/136,478,404.20 = 90,418,732.40/x
  3. Step 3: Cross multiply
    90,985,602.80x = 136,478,404.20 × 90,418,732.40
  4. Step 4: Simplify right side
    90,985,602.80x = 12,340,204,307,738,836
  5. Step 5: Solve for x
    x = 12,340,204,307,738,836/90,985,602.80
  6. Step 6: Final answer
    x = 135,628,098.60

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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.