Home / 65,917,116.12-98,856,778.50-19,863,445.08

Finding the Fourth Proportional to 65,917,116.12, 98,856,778.50 and 19,863,445.08

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Solution

The fourth proportional to 65,917,116.12, 98,856,778.50 and 19,863,445.08 is: 29,789,473.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,917,116.12 : 98,856,778.50 = 19,863,445.08 : x
  2. Step 2: Convert to fraction form
    65,917,116.12/98,856,778.50 = 19,863,445.08/x
  3. Step 3: Cross multiply
    65,917,116.12x = 98,856,778.50 × 19,863,445.08
  4. Step 4: Simplify right side
    65,917,116.12x = 1,963,636,190,520,474.50
  5. Step 5: Solve for x
    x = 1,963,636,190,520,474.50/65,917,116.12
  6. Step 6: Final answer
    x = 29,789,473.60

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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.