Home / 12,948,041.80-19,422,062.70-4,428,656.20

Finding the Fourth Proportional to 12,948,041.80, 19,422,062.70 and 4,428,656.20

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Solution

The fourth proportional to 12,948,041.80, 19,422,062.70 and 4,428,656.20 is: 6,642,984.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,041.80 : 19,422,062.70 = 4,428,656.20 : x
  2. Step 2: Convert to fraction form
    12,948,041.80/19,422,062.70 = 4,428,656.20/x
  3. Step 3: Cross multiply
    12,948,041.80x = 19,422,062.70 × 4,428,656.20
  4. Step 4: Simplify right side
    12,948,041.80x = 86,013,638,393,143.73
  5. Step 5: Solve for x
    x = 86,013,638,393,143.73/12,948,041.80
  6. Step 6: Final answer
    x = 6,642,984.30

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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.