Home / 12,358,749.60-18,538,124.40-11,854,864.80

Finding the Fourth Proportional to 12,358,749.60, 18,538,124.40 and 11,854,864.80

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Solution

The fourth proportional to 12,358,749.60, 18,538,124.40 and 11,854,864.80 is: 17,782,297.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358,749.60 : 18,538,124.40 = 11,854,864.80 : x
  2. Step 2: Convert to fraction form
    12,358,749.60/18,538,124.40 = 11,854,864.80/x
  3. Step 3: Cross multiply
    12,358,749.60x = 18,538,124.40 × 11,854,864.80
  4. Step 4: Simplify right side
    12,358,749.60x = 219,766,958,407,581.12
  5. Step 5: Solve for x
    x = 219,766,958,407,581.12/12,358,749.60
  6. Step 6: Final answer
    x = 17,782,297.20

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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.