Home / 13,146,848.20-19,720,272.30-7,478,144.20

Finding the Fourth Proportional to 13,146,848.20, 19,720,272.30 and 7,478,144.20

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Solution

The fourth proportional to 13,146,848.20, 19,720,272.30 and 7,478,144.20 is: 11,217,216.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146,848.20 : 19,720,272.30 = 7,478,144.20 : x
  2. Step 2: Convert to fraction form
    13,146,848.20/19,720,272.30 = 7,478,144.20/x
  3. Step 3: Cross multiply
    13,146,848.20x = 19,720,272.30 × 7,478,144.20
  4. Step 4: Simplify right side
    13,146,848.20x = 147,471,039,922,665.66
  5. Step 5: Solve for x
    x = 147,471,039,922,665.66/13,146,848.20
  6. Step 6: Final answer
    x = 11,217,216.30

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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.