Home / 20,459,612.20-28,232,254.74-11,291,662.84

Finding the Fourth Proportional to 20,459,612.20, 28,232,254.74 and 11,291,662.84

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Solution

The fourth proportional to 20,459,612.20, 28,232,254.74 and 11,291,662.84 is: 15,581,385.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,459,612.20 : 28,232,254.74 = 11,291,662.84 : x
  2. Step 2: Convert to fraction form
    20,459,612.20/28,232,254.74 = 11,291,662.84/x
  3. Step 3: Cross multiply
    20,459,612.20x = 28,232,254.74 × 11,291,662.84
  4. Step 4: Simplify right side
    20,459,612.20x = 318,789,101,737,071.81
  5. Step 5: Solve for x
    x = 318,789,101,737,071.81/20,459,612.20
  6. Step 6: Final answer
    x = 15,581,385.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.