Home / 83,779,221.24-115,616,015.82-47,109,471.48

Finding the Fourth Proportional to 83,779,221.24, 115,616,015.82 and 47,109,471.48

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Solution

The fourth proportional to 83,779,221.24, 115,616,015.82 and 47,109,471.48 is: 65,011,458.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,779,221.24 : 115,616,015.82 = 47,109,471.48 : x
  2. Step 2: Convert to fraction form
    83,779,221.24/115,616,015.82 = 47,109,471.48/x
  3. Step 3: Cross multiply
    83,779,221.24x = 115,616,015.82 × 47,109,471.48
  4. Step 4: Simplify right side
    83,779,221.24x = 5,446,609,399,903,518
  5. Step 5: Solve for x
    x = 5,446,609,399,903,518/83,779,221.24
  6. Step 6: Final answer
    x = 65,011,458.92

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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.