Home / 30,161,138.40-45,241,707.60-15,778,648.80

Finding the Fourth Proportional to 30,161,138.40, 45,241,707.60 and 15,778,648.80

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Solution

The fourth proportional to 30,161,138.40, 45,241,707.60 and 15,778,648.80 is: 23,667,973.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,161,138.40 : 45,241,707.60 = 15,778,648.80 : x
  2. Step 2: Convert to fraction form
    30,161,138.40/45,241,707.60 = 15,778,648.80/x
  3. Step 3: Cross multiply
    30,161,138.40x = 45,241,707.60 × 15,778,648.80
  4. Step 4: Simplify right side
    30,161,138.40x = 713,853,015,332,690.88
  5. Step 5: Solve for x
    x = 713,853,015,332,690.88/30,161,138.40
  6. Step 6: Final answer
    x = 23,667,973.20

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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.