Home / 18,133,130.40-27,199,695.60-12,747,861.60

Finding the Fourth Proportional to 18,133,130.40, 27,199,695.60 and 12,747,861.60

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Solution

The fourth proportional to 18,133,130.40, 27,199,695.60 and 12,747,861.60 is: 19,121,792.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,133,130.40 : 27,199,695.60 = 12,747,861.60 : x
  2. Step 2: Convert to fraction form
    18,133,130.40/27,199,695.60 = 12,747,861.60/x
  3. Step 3: Cross multiply
    18,133,130.40x = 27,199,695.60 × 12,747,861.60
  4. Step 4: Simplify right side
    18,133,130.40x = 346,737,955,070,929
  5. Step 5: Solve for x
    x = 346,737,955,070,929/18,133,130.40
  6. Step 6: Final answer
    x = 19,121,792.40

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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.