Home / 30,167,444.28-45,215,560.98-12,890,591.16

Finding the Fourth Proportional to 30,167,444.28, 45,215,560.98 and 12,890,591.16

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Solution

The fourth proportional to 30,167,444.28, 45,215,560.98 and 12,890,591.16 is: 19,320,672.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,167,444.28 : 45,215,560.98 = 12,890,591.16 : x
  2. Step 2: Convert to fraction form
    30,167,444.28/45,215,560.98 = 12,890,591.16/x
  3. Step 3: Cross multiply
    30,167,444.28x = 45,215,560.98 × 12,890,591.16
  4. Step 4: Simplify right side
    30,167,444.28x = 582,855,310,663,228.88
  5. Step 5: Solve for x
    x = 582,855,310,663,228.88/30,167,444.28
  6. Step 6: Final answer
    x = 19,320,672.49

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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.