Home / 12,478,465.70-18,717,698.55-3,501,851.30

Finding the Fourth Proportional to 12,478,465.70, 18,717,698.55 and 3,501,851.30

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Solution

The fourth proportional to 12,478,465.70, 18,717,698.55 and 3,501,851.30 is: 5,252,776.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,478,465.70 : 18,717,698.55 = 3,501,851.30 : x
  2. Step 2: Convert to fraction form
    12,478,465.70/18,717,698.55 = 3,501,851.30/x
  3. Step 3: Cross multiply
    12,478,465.70x = 18,717,698.55 × 3,501,851.30
  4. Step 4: Simplify right side
    12,478,465.70x = 65,546,597,000,325.62
  5. Step 5: Solve for x
    x = 65,546,597,000,325.62/12,478,465.70
  6. Step 6: Final answer
    x = 5,252,776.95

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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.