Home / 66,580,107.20-99,870,160.80-18,711,051.20

Finding the Fourth Proportional to 66,580,107.20, 99,870,160.80 and 18,711,051.20

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Solution

The fourth proportional to 66,580,107.20, 99,870,160.80 and 18,711,051.20 is: 28,066,576.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,580,107.20 : 99,870,160.80 = 18,711,051.20 : x
  2. Step 2: Convert to fraction form
    66,580,107.20/99,870,160.80 = 18,711,051.20/x
  3. Step 3: Cross multiply
    66,580,107.20x = 99,870,160.80 × 18,711,051.20
  4. Step 4: Simplify right side
    66,580,107.20x = 1,868,675,692,081,032.75
  5. Step 5: Solve for x
    x = 1,868,675,692,081,032.75/66,580,107.20
  6. Step 6: Final answer
    x = 28,066,576.80

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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.