Home / 47,921,324.80-71,881,987.20-19,188,081.40

Finding the Fourth Proportional to 47,921,324.80, 71,881,987.20 and 19,188,081.40

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Solution

The fourth proportional to 47,921,324.80, 71,881,987.20 and 19,188,081.40 is: 28,782,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,921,324.80 : 71,881,987.20 = 19,188,081.40 : x
  2. Step 2: Convert to fraction form
    47,921,324.80/71,881,987.20 = 19,188,081.40/x
  3. Step 3: Cross multiply
    47,921,324.80x = 71,881,987.20 × 19,188,081.40
  4. Step 4: Simplify right side
    47,921,324.80x = 1,379,277,421,587,358
  5. Step 5: Solve for x
    x = 1,379,277,421,587,358/47,921,324.80
  6. Step 6: Final answer
    x = 28,782,122.10

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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.