Home / 78,556,932.80-108,411,930.48-43,749,623.20

Finding the Fourth Proportional to 78,556,932.80, 108,411,930.48 and 43,749,623.20

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Solution

The fourth proportional to 78,556,932.80, 108,411,930.48 and 43,749,623.20 is: 60,376,353.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,556,932.80 : 108,411,930.48 = 43,749,623.20 : x
  2. Step 2: Convert to fraction form
    78,556,932.80/108,411,930.48 = 43,749,623.20/x
  3. Step 3: Cross multiply
    78,556,932.80x = 108,411,930.48 × 43,749,623.20
  4. Step 4: Simplify right side
    78,556,932.80x = 4,742,981,108,884,596
  5. Step 5: Solve for x
    x = 4,742,981,108,884,596/78,556,932.80
  6. Step 6: Final answer
    x = 60,376,353.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.