Home / 123,651,011.40-185,476,517.10-42,880,144.20

Finding the Fourth Proportional to 123,651,011.40, 185,476,517.10 and 42,880,144.20

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Solution

The fourth proportional to 123,651,011.40, 185,476,517.10 and 42,880,144.20 is: 64,320,216.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,651,011.40 : 185,476,517.10 = 42,880,144.20 : x
  2. Step 2: Convert to fraction form
    123,651,011.40/185,476,517.10 = 42,880,144.20/x
  3. Step 3: Cross multiply
    123,651,011.40x = 185,476,517.10 × 42,880,144.20
  4. Step 4: Simplify right side
    123,651,011.40x = 7,953,259,798,961,766
  5. Step 5: Solve for x
    x = 7,953,259,798,961,766/123,651,011.40
  6. Step 6: Final answer
    x = 64,320,216.30

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Similar ratio
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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.