Home / 139,344,825.78-192,301,400.28-76,626,065.76

Finding the Fourth Proportional to 139,344,825.78, 192,301,400.28 and 76,626,065.76

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Solution

The fourth proportional to 139,344,825.78, 192,301,400.28 and 76,626,065.76 is: 105,747,017.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,344,825.78 : 192,301,400.28 = 76,626,065.76 : x
  2. Step 2: Convert to fraction form
    139,344,825.78/192,301,400.28 = 76,626,065.76/x
  3. Step 3: Cross multiply
    139,344,825.78x = 192,301,400.28 × 76,626,065.76
  4. Step 4: Simplify right side
    139,344,825.78x = 14,735,299,743,595,364
  5. Step 5: Solve for x
    x = 14,735,299,743,595,364/139,344,825.78
  6. Step 6: Final answer
    x = 105,747,017.60

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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.