Home / 12,291,820.40-18,437,730.60-3,771,049.70

Finding the Fourth Proportional to 12,291,820.40, 18,437,730.60 and 3,771,049.70

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Solution

The fourth proportional to 12,291,820.40, 18,437,730.60 and 3,771,049.70 is: 5,656,574.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,291,820.40 : 18,437,730.60 = 3,771,049.70 : x
  2. Step 2: Convert to fraction form
    12,291,820.40/18,437,730.60 = 3,771,049.70/x
  3. Step 3: Cross multiply
    12,291,820.40x = 18,437,730.60 × 3,771,049.70
  4. Step 4: Simplify right side
    12,291,820.40x = 69,529,598,447,810.83
  5. Step 5: Solve for x
    x = 69,529,598,447,810.83/12,291,820.40
  6. Step 6: Final answer
    x = 5,656,574.55

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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.