Home / 10,152,409.10-15,228,613.65-7,129,100.30

Finding the Fourth Proportional to 10,152,409.10, 15,228,613.65 and 7,129,100.30

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Solution

The fourth proportional to 10,152,409.10, 15,228,613.65 and 7,129,100.30 is: 10,693,650.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,152,409.10 : 15,228,613.65 = 7,129,100.30 : x
  2. Step 2: Convert to fraction form
    10,152,409.10/15,228,613.65 = 7,129,100.30/x
  3. Step 3: Cross multiply
    10,152,409.10x = 15,228,613.65 × 7,129,100.30
  4. Step 4: Simplify right side
    10,152,409.10x = 108,566,314,140,799.09
  5. Step 5: Solve for x
    x = 108,566,314,140,799.09/10,152,409.10
  6. Step 6: Final answer
    x = 10,693,650.45

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Double scale
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Similar ratio
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1.5x scale

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.