Home / 80,120,444.10-120,180,666.15-74,745,672.90

Finding the Fourth Proportional to 80,120,444.10, 120,180,666.15 and 74,745,672.90

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Solution

The fourth proportional to 80,120,444.10, 120,180,666.15 and 74,745,672.90 is: 112,118,509.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,120,444.10 : 120,180,666.15 = 74,745,672.90 : x
  2. Step 2: Convert to fraction form
    80,120,444.10/120,180,666.15 = 74,745,672.90/x
  3. Step 3: Cross multiply
    80,120,444.10x = 120,180,666.15 × 74,745,672.90
  4. Step 4: Simplify right side
    80,120,444.10x = 8,982,984,760,952,003
  5. Step 5: Solve for x
    x = 8,982,984,760,952,003/80,120,444.10
  6. Step 6: Final answer
    x = 112,118,509.35

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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.