Home / 66,432,195.12-99,639,721.80-20,998,582.32

Finding the Fourth Proportional to 66,432,195.12, 99,639,721.80 and 20,998,582.32

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Solution

The fourth proportional to 66,432,195.12, 99,639,721.80 and 20,998,582.32 is: 31,495,164.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,432,195.12 : 99,639,721.80 = 20,998,582.32 : x
  2. Step 2: Convert to fraction form
    66,432,195.12/99,639,721.80 = 20,998,582.32/x
  3. Step 3: Cross multiply
    66,432,195.12x = 99,639,721.80 × 20,998,582.32
  4. Step 4: Simplify right side
    66,432,195.12x = 2,092,292,900,559,198.50
  5. Step 5: Solve for x
    x = 2,092,292,900,559,198.50/66,432,195.12
  6. Step 6: Final answer
    x = 31,495,164.31

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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.