Home / 19,319,621.90-28,979,432.85-10,361,669.90

Finding the Fourth Proportional to 19,319,621.90, 28,979,432.85 and 10,361,669.90

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Solution

The fourth proportional to 19,319,621.90, 28,979,432.85 and 10,361,669.90 is: 15,542,504.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319,621.90 : 28,979,432.85 = 10,361,669.90 : x
  2. Step 2: Convert to fraction form
    19,319,621.90/28,979,432.85 = 10,361,669.90/x
  3. Step 3: Cross multiply
    19,319,621.90x = 28,979,432.85 × 10,361,669.90
  4. Step 4: Simplify right side
    19,319,621.90x = 300,275,317,080,916.25
  5. Step 5: Solve for x
    x = 300,275,317,080,916.25/19,319,621.90
  6. Step 6: Final answer
    x = 15,542,504.85

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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.