Home / 21,987,042.75-30,342,154.73-12,197,487.03

Finding the Fourth Proportional to 21,987,042.75, 30,342,154.73 and 12,197,487.03

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Solution

The fourth proportional to 21,987,042.75, 30,342,154.73 and 12,197,487.03 is: 16,832,551.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,987,042.75 : 30,342,154.73 = 12,197,487.03 : x
  2. Step 2: Convert to fraction form
    21,987,042.75/30,342,154.73 = 12,197,487.03/x
  3. Step 3: Cross multiply
    21,987,042.75x = 30,342,154.73 × 12,197,487.03
  4. Step 4: Simplify right side
    21,987,042.75x = 370,098,038,781,428.12
  5. Step 5: Solve for x
    x = 370,098,038,781,428.12/21,987,042.75
  6. Step 6: Final answer
    x = 16,832,551.93

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1.5x scale

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.