Home / 13,772,581.40-20,658,872.10-7,395,289.40

Finding the Fourth Proportional to 13,772,581.40, 20,658,872.10 and 7,395,289.40

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Solution

The fourth proportional to 13,772,581.40, 20,658,872.10 and 7,395,289.40 is: 11,092,934.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772,581.40 : 20,658,872.10 = 7,395,289.40 : x
  2. Step 2: Convert to fraction form
    13,772,581.40/20,658,872.10 = 7,395,289.40/x
  3. Step 3: Cross multiply
    13,772,581.40x = 20,658,872.10 × 7,395,289.40
  4. Step 4: Simplify right side
    13,772,581.40x = 152,778,337,857,085.75
  5. Step 5: Solve for x
    x = 152,778,337,857,085.75/13,772,581.40
  6. Step 6: Final answer
    x = 11,092,934.10

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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.