Home / 15,790,378.60-21,781,626.96-9,506,531.62

Finding the Fourth Proportional to 15,790,378.60, 21,781,626.96 and 9,506,531.62

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Solution

The fourth proportional to 15,790,378.60, 21,781,626.96 and 9,506,531.62 is: 13,113,537.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,790,378.60 : 21,781,626.96 = 9,506,531.62 : x
  2. Step 2: Convert to fraction form
    15,790,378.60/21,781,626.96 = 9,506,531.62/x
  3. Step 3: Cross multiply
    15,790,378.60x = 21,781,626.96 × 9,506,531.62
  4. Step 4: Simplify right side
    15,790,378.60x = 207,067,725,430,284.47
  5. Step 5: Solve for x
    x = 207,067,725,430,284.47/15,790,378.60
  6. Step 6: Final answer
    x = 13,113,537.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.