Home / 142,158,392.28-196,191,731.34-86,390,942.04

Finding the Fourth Proportional to 142,158,392.28, 196,191,731.34 and 86,390,942.04

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Solution

The fourth proportional to 142,158,392.28, 196,191,731.34 and 86,390,942.04 is: 119,227,491.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,158,392.28 : 196,191,731.34 = 86,390,942.04 : x
  2. Step 2: Convert to fraction form
    142,158,392.28/196,191,731.34 = 86,390,942.04/x
  3. Step 3: Cross multiply
    142,158,392.28x = 196,191,731.34 × 86,390,942.04
  4. Step 4: Simplify right side
    142,158,392.28x = 16,949,188,490,921,194
  5. Step 5: Solve for x
    x = 16,949,188,490,921,194/142,158,392.28
  6. Step 6: Final answer
    x = 119,227,491.39

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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.