Home / 20,081,445.30-30,122,167.95-18,695,762.10

Finding the Fourth Proportional to 20,081,445.30, 30,122,167.95 and 18,695,762.10

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Solution

The fourth proportional to 20,081,445.30, 30,122,167.95 and 18,695,762.10 is: 28,043,643.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,081,445.30 : 30,122,167.95 = 18,695,762.10 : x
  2. Step 2: Convert to fraction form
    20,081,445.30/30,122,167.95 = 18,695,762.10/x
  3. Step 3: Cross multiply
    20,081,445.30x = 30,122,167.95 × 18,695,762.10
  4. Step 4: Simplify right side
    20,081,445.30x = 563,156,885,929,444.75
  5. Step 5: Solve for x
    x = 563,156,885,929,444.75/20,081,445.30
  6. Step 6: Final answer
    x = 28,043,643.15

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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.