Home / 12,711,988.80-19,051,394.40-5,887,771.20

Finding the Fourth Proportional to 12,711,988.80, 19,051,394.40 and 5,887,771.20

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Solution

The fourth proportional to 12,711,988.80, 19,051,394.40 and 5,887,771.20 is: 8,823,973.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,711,988.80 : 19,051,394.40 = 5,887,771.20 : x
  2. Step 2: Convert to fraction form
    12,711,988.80/19,051,394.40 = 5,887,771.20/x
  3. Step 3: Cross multiply
    12,711,988.80x = 19,051,394.40 × 5,887,771.20
  4. Step 4: Simplify right side
    12,711,988.80x = 112,170,251,268,161.28
  5. Step 5: Solve for x
    x = 112,170,251,268,161.28/12,711,988.80
  6. Step 6: Final answer
    x = 8,823,973.42

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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.