Home / 18,005,445.30-27,008,127.96-13,912,717.60

Finding the Fourth Proportional to 18,005,445.30, 27,008,127.96 and 13,912,717.60

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Solution

The fourth proportional to 18,005,445.30, 27,008,127.96 and 13,912,717.60 is: 20,869,045.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,005,445.30 : 27,008,127.96 = 13,912,717.60 : x
  2. Step 2: Convert to fraction form
    18,005,445.30/27,008,127.96 = 13,912,717.60/x
  3. Step 3: Cross multiply
    18,005,445.30x = 27,008,127.96 × 13,912,717.60
  4. Step 4: Simplify right side
    18,005,445.30x = 375,756,457,212,144.12
  5. Step 5: Solve for x
    x = 375,756,457,212,144.12/18,005,445.30
  6. Step 6: Final answer
    x = 20,869,045.50

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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.