Home / 19,191,781.80-28,850,658.30-13,551,071.40

Finding the Fourth Proportional to 19,191,781.80, 28,850,658.30 and 13,551,071.40

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Solution

The fourth proportional to 19,191,781.80, 28,850,658.30 and 13,551,071.40 is: 20,371,080.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,191,781.80 : 28,850,658.30 = 13,551,071.40 : x
  2. Step 2: Convert to fraction form
    19,191,781.80/28,850,658.30 = 13,551,071.40/x
  3. Step 3: Cross multiply
    19,191,781.80x = 28,850,658.30 × 13,551,071.40
  4. Step 4: Simplify right side
    19,191,781.80x = 390,957,330,560,302.62
  5. Step 5: Solve for x
    x = 390,957,330,560,302.62/19,191,781.80
  6. Step 6: Final answer
    x = 20,371,080.43

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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.