Home / 66,142,432.90-99,207,234.33-20,084,700.52

Finding the Fourth Proportional to 66,142,432.90, 99,207,234.33 and 20,084,700.52

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Solution

The fourth proportional to 66,142,432.90, 99,207,234.33 and 20,084,700.52 is: 30,125,102.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,142,432.90 : 99,207,234.33 = 20,084,700.52 : x
  2. Step 2: Convert to fraction form
    66,142,432.90/99,207,234.33 = 20,084,700.52/x
  3. Step 3: Cross multiply
    66,142,432.90x = 99,207,234.33 × 20,084,700.52
  4. Step 4: Simplify right side
    66,142,432.90x = 1,992,547,590,935,512.75
  5. Step 5: Solve for x
    x = 1,992,547,590,935,512.75/66,142,432.90
  6. Step 6: Final answer
    x = 30,125,102.81

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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.