Home / 66,274,024.32-99,426,684.46-20,835,818.82

Finding the Fourth Proportional to 66,274,024.32, 99,426,684.46 and 20,835,818.82

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Solution

The fourth proportional to 66,274,024.32, 99,426,684.46 and 20,835,818.82 is: 31,258,647.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,274,024.32 : 99,426,684.46 = 20,835,818.82 : x
  2. Step 2: Convert to fraction form
    66,274,024.32/99,426,684.46 = 20,835,818.82/x
  3. Step 3: Cross multiply
    66,274,024.32x = 99,426,684.46 × 20,835,818.82
  4. Step 4: Simplify right side
    66,274,024.32x = 2,071,636,383,281,869.50
  5. Step 5: Solve for x
    x = 2,071,636,383,281,869.50/66,274,024.32
  6. Step 6: Final answer
    x = 31,258,647.78

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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.