Home / 66,580,123.20-99,870,184.80-18,711,067.20

Finding the Fourth Proportional to 66,580,123.20, 99,870,184.80 and 18,711,067.20

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Solution

The fourth proportional to 66,580,123.20, 99,870,184.80 and 18,711,067.20 is: 28,066,600.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,580,123.20 : 99,870,184.80 = 18,711,067.20 : x
  2. Step 2: Convert to fraction form
    66,580,123.20/99,870,184.80 = 18,711,067.20/x
  3. Step 3: Cross multiply
    66,580,123.20x = 99,870,184.80 × 18,711,067.20
  4. Step 4: Simplify right side
    66,580,123.20x = 1,868,677,739,069,218.50
  5. Step 5: Solve for x
    x = 1,868,677,739,069,218.50/66,580,123.20
  6. Step 6: Final answer
    x = 28,066,600.80

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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.