Home / 10,152,448.60-15,228,672.90-7,129,139.80

Finding the Fourth Proportional to 10,152,448.60, 15,228,672.90 and 7,129,139.80

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Solution

The fourth proportional to 10,152,448.60, 15,228,672.90 and 7,129,139.80 is: 10,693,709.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,152,448.60 : 15,228,672.90 = 7,129,139.80 : x
  2. Step 2: Convert to fraction form
    10,152,448.60/15,228,672.90 = 7,129,139.80/x
  3. Step 3: Cross multiply
    10,152,448.60x = 15,228,672.90 × 7,129,139.80
  4. Step 4: Simplify right side
    10,152,448.60x = 108,567,338,072,571.42
  5. Step 5: Solve for x
    x = 108,567,338,072,571.42/10,152,448.60
  6. Step 6: Final answer
    x = 10,693,709.70

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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.