Home / 18,888,320.70-28,332,481.05-14,778,510.30

Finding the Fourth Proportional to 18,888,320.70, 28,332,481.05 and 14,778,510.30

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Solution

The fourth proportional to 18,888,320.70, 28,332,481.05 and 14,778,510.30 is: 22,167,765.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,888,320.70 : 28,332,481.05 = 14,778,510.30 : x
  2. Step 2: Convert to fraction form
    18,888,320.70/28,332,481.05 = 14,778,510.30/x
  3. Step 3: Cross multiply
    18,888,320.70x = 28,332,481.05 × 14,778,510.30
  4. Step 4: Simplify right side
    18,888,320.70x = 418,711,863,021,979.88
  5. Step 5: Solve for x
    x = 418,711,863,021,979.88/18,888,320.70
  6. Step 6: Final answer
    x = 22,167,765.45

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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.