Home / 18,909,657.90-28,395,979.65-10,396,104.30

Finding the Fourth Proportional to 18,909,657.90, 28,395,979.65 and 10,396,104.30

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Solution

The fourth proportional to 18,909,657.90, 28,395,979.65 and 10,396,104.30 is: 15,611,470.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,909,657.90 : 28,395,979.65 = 10,396,104.30 : x
  2. Step 2: Convert to fraction form
    18,909,657.90/28,395,979.65 = 10,396,104.30/x
  3. Step 3: Cross multiply
    18,909,657.90x = 28,395,979.65 × 10,396,104.30
  4. Step 4: Simplify right side
    18,909,657.90x = 295,207,566,142,077.50
  5. Step 5: Solve for x
    x = 295,207,566,142,077.50/18,909,657.90
  6. Step 6: Final answer
    x = 15,611,470.48

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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.