Home / 89,341,127.20-134,011,690.80-80,271,200.80

Finding the Fourth Proportional to 89,341,127.20, 134,011,690.80 and 80,271,200.80

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Solution

The fourth proportional to 89,341,127.20, 134,011,690.80 and 80,271,200.80 is: 120,406,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,341,127.20 : 134,011,690.80 = 80,271,200.80 : x
  2. Step 2: Convert to fraction form
    89,341,127.20/134,011,690.80 = 80,271,200.80/x
  3. Step 3: Cross multiply
    89,341,127.20x = 134,011,690.80 × 80,271,200.80
  4. Step 4: Simplify right side
    89,341,127.20x = 10,757,279,341,754,312
  5. Step 5: Solve for x
    x = 10,757,279,341,754,312/89,341,127.20
  6. Step 6: Final answer
    x = 120,406,801.20

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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.