Home / 66,142,421.64-99,207,217.67-20,084,689.40

Finding the Fourth Proportional to 66,142,421.64, 99,207,217.67 and 20,084,689.40

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Solution

The fourth proportional to 66,142,421.64, 99,207,217.67 and 20,084,689.40 is: 30,125,086.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,142,421.64 : 99,207,217.67 = 20,084,689.40 : x
  2. Step 2: Convert to fraction form
    66,142,421.64/99,207,217.67 = 20,084,689.40/x
  3. Step 3: Cross multiply
    66,142,421.64x = 99,207,217.67 × 20,084,689.40
  4. Step 4: Simplify right side
    66,142,421.64x = 1,992,546,152,543,682.25
  5. Step 5: Solve for x
    x = 1,992,546,152,543,682.25/66,142,421.64
  6. Step 6: Final answer
    x = 30,125,086.19

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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.