Home / 142,217,557.31-196,276,180.52-80,341,881.68

Finding the Fourth Proportional to 142,217,557.31, 196,276,180.52 and 80,341,881.68

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Solution

The fourth proportional to 142,217,557.31, 196,276,180.52 and 80,341,881.68 is: 110,880,808.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,217,557.31 : 196,276,180.52 = 80,341,881.68 : x
  2. Step 2: Convert to fraction form
    142,217,557.31/196,276,180.52 = 80,341,881.68/x
  3. Step 3: Cross multiply
    142,217,557.31x = 196,276,180.52 × 80,341,881.68
  4. Step 4: Simplify right side
    142,217,557.31x = 15,769,197,672,631,708
  5. Step 5: Solve for x
    x = 15,769,197,672,631,708/142,217,557.31
  6. Step 6: Final answer
    x = 110,880,808.04

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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.