Home / 12,455,595.90-18,683,393.85-3,480,147.90

Finding the Fourth Proportional to 12,455,595.90, 18,683,393.85 and 3,480,147.90

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Solution

The fourth proportional to 12,455,595.90, 18,683,393.85 and 3,480,147.90 is: 5,220,221.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,595.90 : 18,683,393.85 = 3,480,147.90 : x
  2. Step 2: Convert to fraction form
    12,455,595.90/18,683,393.85 = 3,480,147.90/x
  3. Step 3: Cross multiply
    12,455,595.90x = 18,683,393.85 × 3,480,147.90
  4. Step 4: Simplify right side
    12,455,595.90x = 65,020,973,871,950.42
  5. Step 5: Solve for x
    x = 65,020,973,871,950.42/12,455,595.90
  6. Step 6: Final answer
    x = 5,220,221.85

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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.