Home / 12,785,655.30-19,189,369.35-5,218,052.10

Finding the Fourth Proportional to 12,785,655.30, 19,189,369.35 and 5,218,052.10

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Solution

The fourth proportional to 12,785,655.30, 19,189,369.35 and 5,218,052.10 is: 7,831,521.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785,655.30 : 19,189,369.35 = 5,218,052.10 : x
  2. Step 2: Convert to fraction form
    12,785,655.30/19,189,369.35 = 5,218,052.10/x
  3. Step 3: Cross multiply
    12,785,655.30x = 19,189,369.35 × 5,218,052.10
  4. Step 4: Simplify right side
    12,785,655.30x = 100,131,129,034,443.14
  5. Step 5: Solve for x
    x = 100,131,129,034,443.14/12,785,655.30
  6. Step 6: Final answer
    x = 7,831,521.08

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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.