Home / 20,530,506.24-30,781,762.56-10,413,619.20

Finding the Fourth Proportional to 20,530,506.24, 30,781,762.56 and 10,413,619.20

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Solution

The fourth proportional to 20,530,506.24, 30,781,762.56 and 10,413,619.20 is: 15,613,329.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,530,506.24 : 30,781,762.56 = 10,413,619.20 : x
  2. Step 2: Convert to fraction form
    20,530,506.24/30,781,762.56 = 10,413,619.20/x
  3. Step 3: Cross multiply
    20,530,506.24x = 30,781,762.56 × 10,413,619.20
  4. Step 4: Simplify right side
    20,530,506.24x = 320,549,553,604,657.12
  5. Step 5: Solve for x
    x = 320,549,553,604,657.12/20,530,506.24
  6. Step 6: Final answer
    x = 15,613,329.25

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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.