Home / 13,239,443.64-19,889,060.40-7,851,627.96

Finding the Fourth Proportional to 13,239,443.64, 19,889,060.40 and 7,851,627.96

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Solution

The fourth proportional to 13,239,443.64, 19,889,060.40 and 7,851,627.96 is: 11,795,171.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239,443.64 : 19,889,060.40 = 7,851,627.96 : x
  2. Step 2: Convert to fraction form
    13,239,443.64/19,889,060.40 = 7,851,627.96/x
  3. Step 3: Cross multiply
    13,239,443.64x = 19,889,060.40 × 7,851,627.96
  4. Step 4: Simplify right side
    13,239,443.64x = 156,161,502,734,768.78
  5. Step 5: Solve for x
    x = 156,161,502,734,768.78/13,239,443.64
  6. Step 6: Final answer
    x = 11,795,171.08

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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.