Home / 66,580,073.12-99,870,109.70-18,711,017.12

Finding the Fourth Proportional to 66,580,073.12, 99,870,109.70 and 18,711,017.12

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Solution

The fourth proportional to 66,580,073.12, 99,870,109.70 and 18,711,017.12 is: 28,066,525.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,580,073.12 : 99,870,109.70 = 18,711,017.12 : x
  2. Step 2: Convert to fraction form
    66,580,073.12/99,870,109.70 = 18,711,017.12/x
  3. Step 3: Cross multiply
    66,580,073.12x = 99,870,109.70 × 18,711,017.12
  4. Step 4: Simplify right side
    66,580,073.12x = 1,868,671,332,372,978.25
  5. Step 5: Solve for x
    x = 1,868,671,332,372,978.25/66,580,073.12
  6. Step 6: Final answer
    x = 28,066,525.69

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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.