Home / 19,440,100.80-29,160,151.20-19,156,665.60

Finding the Fourth Proportional to 19,440,100.80, 29,160,151.20 and 19,156,665.60

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Solution

The fourth proportional to 19,440,100.80, 29,160,151.20 and 19,156,665.60 is: 28,734,998.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,440,100.80 : 29,160,151.20 = 19,156,665.60 : x
  2. Step 2: Convert to fraction form
    19,440,100.80/29,160,151.20 = 19,156,665.60/x
  3. Step 3: Cross multiply
    19,440,100.80x = 29,160,151.20 × 19,156,665.60
  4. Step 4: Simplify right side
    19,440,100.80x = 558,611,265,383,838.75
  5. Step 5: Solve for x
    x = 558,611,265,383,838.75/19,440,100.80
  6. Step 6: Final answer
    x = 28,734,998.40

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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.