Home / 140,249,727-193,540,910.60-78,370,574.04

Finding the Fourth Proportional to 140,249,727, 193,540,910.60 and 78,370,574.04

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Solution

The fourth proportional to 140,249,727, 193,540,910.60 and 78,370,574.04 is: 108,149,317.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,249,727 : 193,540,910.60 = 78,370,574.04 : x
  2. Step 2: Convert to fraction form
    140,249,727/193,540,910.60 = 78,370,574.04/x
  3. Step 3: Cross multiply
    140,249,727x = 193,540,910.60 × 78,370,574.04
  4. Step 4: Simplify right side
    140,249,727x = 15,167,912,263,946,322
  5. Step 5: Solve for x
    x = 15,167,912,263,946,322/140,249,727
  6. Step 6: Final answer
    x = 108,149,317.57

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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.