Home / 142,659,523.87-196,866,812.28-83,925,971.35

Finding the Fourth Proportional to 142,659,523.87, 196,866,812.28 and 83,925,971.35

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Solution

The fourth proportional to 142,659,523.87, 196,866,812.28 and 83,925,971.35 is: 115,815,881.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,659,523.87 : 196,866,812.28 = 83,925,971.35 : x
  2. Step 2: Convert to fraction form
    142,659,523.87/196,866,812.28 = 83,925,971.35/x
  3. Step 3: Cross multiply
    142,659,523.87x = 196,866,812.28 × 83,925,971.35
  4. Step 4: Simplify right side
    142,659,523.87x = 16,522,238,447,177,108
  5. Step 5: Solve for x
    x = 16,522,238,447,177,108/142,659,523.87
  6. Step 6: Final answer
    x = 115,815,881.05

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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.