Home / 13,239,419.64-19,889,024.40-7,851,603.90

Finding the Fourth Proportional to 13,239,419.64, 19,889,024.40 and 7,851,603.90

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Solution

The fourth proportional to 13,239,419.64, 19,889,024.40 and 7,851,603.90 is: 11,795,134.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239,419.64 : 19,889,024.40 = 7,851,603.90 : x
  2. Step 2: Convert to fraction form
    13,239,419.64/19,889,024.40 = 7,851,603.90/x
  3. Step 3: Cross multiply
    13,239,419.64x = 19,889,024.40 × 7,851,603.90
  4. Step 4: Simplify right side
    13,239,419.64x = 156,160,741,546,235.16
  5. Step 5: Solve for x
    x = 156,160,741,546,235.16/13,239,419.64
  6. Step 6: Final answer
    x = 11,795,134.97

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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.