Home / 66,142,433.89-99,207,236.32-20,084,701.87

Finding the Fourth Proportional to 66,142,433.89, 99,207,236.32 and 20,084,701.87

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Solution

The fourth proportional to 66,142,433.89, 99,207,236.32 and 20,084,701.87 is: 30,125,104.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,142,433.89 : 99,207,236.32 = 20,084,701.87 : x
  2. Step 2: Convert to fraction form
    66,142,433.89/99,207,236.32 = 20,084,701.87/x
  3. Step 3: Cross multiply
    66,142,433.89x = 99,207,236.32 × 20,084,701.87
  4. Step 4: Simplify right side
    66,142,433.89x = 1,992,547,764,237,376
  5. Step 5: Solve for x
    x = 1,992,547,764,237,376/66,142,433.89
  6. Step 6: Final answer
    x = 30,125,104.97

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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.