Home / 51,340,221.92-77,009,660.20-12,478,561.02

Finding the Fourth Proportional to 51,340,221.92, 77,009,660.20 and 12,478,561.02

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Solution

The fourth proportional to 51,340,221.92, 77,009,660.20 and 12,478,561.02 is: 18,717,678.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,340,221.92 : 77,009,660.20 = 12,478,561.02 : x
  2. Step 2: Convert to fraction form
    51,340,221.92/77,009,660.20 = 12,478,561.02/x
  3. Step 3: Cross multiply
    51,340,221.92x = 77,009,660.20 × 12,478,561.02
  4. Step 4: Simplify right side
    51,340,221.92x = 960,969,743,903,969
  5. Step 5: Solve for x
    x = 960,969,743,903,969/51,340,221.92
  6. Step 6: Final answer
    x = 18,717,678.03

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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.