Home / 12,458,437.40-18,687,656.10-5,726,851.40

Finding the Fourth Proportional to 12,458,437.40, 18,687,656.10 and 5,726,851.40

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Solution

The fourth proportional to 12,458,437.40, 18,687,656.10 and 5,726,851.40 is: 8,590,277.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458,437.40 : 18,687,656.10 = 5,726,851.40 : x
  2. Step 2: Convert to fraction form
    12,458,437.40/18,687,656.10 = 5,726,851.40/x
  3. Step 3: Cross multiply
    12,458,437.40x = 18,687,656.10 × 5,726,851.40
  4. Step 4: Simplify right side
    12,458,437.40x = 107,021,429,499,003.56
  5. Step 5: Solve for x
    x = 107,021,429,499,003.56/12,458,437.40
  6. Step 6: Final answer
    x = 8,590,277.10

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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.