Home / 66,142,422.64-99,207,219.16-20,084,690.40

Finding the Fourth Proportional to 66,142,422.64, 99,207,219.16 and 20,084,690.40

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Solution

The fourth proportional to 66,142,422.64, 99,207,219.16 and 20,084,690.40 is: 30,125,087.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,142,422.64 : 99,207,219.16 = 20,084,690.40 : x
  2. Step 2: Convert to fraction form
    66,142,422.64/99,207,219.16 = 20,084,690.40/x
  3. Step 3: Cross multiply
    66,142,422.64x = 99,207,219.16 × 20,084,690.40
  4. Step 4: Simplify right side
    66,142,422.64x = 1,992,546,282,273,547.75
  5. Step 5: Solve for x
    x = 1,992,546,282,273,547.75/66,142,422.64
  6. Step 6: Final answer
    x = 30,125,087.69

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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.