Home / 20,157,548.10-30,240,210.15-8,642,847.30

Finding the Fourth Proportional to 20,157,548.10, 30,240,210.15 and 8,642,847.30

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Solution

The fourth proportional to 20,157,548.10, 30,240,210.15 and 8,642,847.30 is: 12,965,937.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157,548.10 : 30,240,210.15 = 8,642,847.30 : x
  2. Step 2: Convert to fraction form
    20,157,548.10/30,240,210.15 = 8,642,847.30/x
  3. Step 3: Cross multiply
    20,157,548.10x = 30,240,210.15 × 8,642,847.30
  4. Step 4: Simplify right side
    20,157,548.10x = 261,361,518,646,360.09
  5. Step 5: Solve for x
    x = 261,361,518,646,360.09/20,157,548.10
  6. Step 6: Final answer
    x = 12,965,937.99

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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.