Home / 142,846,698.25-197,130,098.82-79,268,342.68

Finding the Fourth Proportional to 142,846,698.25, 197,130,098.82 and 79,268,342.68

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Solution

The fourth proportional to 142,846,698.25, 197,130,098.82 and 79,268,342.68 is: 109,391,231.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,846,698.25 : 197,130,098.82 = 79,268,342.68 : x
  2. Step 2: Convert to fraction form
    142,846,698.25/197,130,098.82 = 79,268,342.68/x
  3. Step 3: Cross multiply
    142,846,698.25x = 197,130,098.82 × 79,268,342.68
  4. Step 4: Simplify right side
    142,846,698.25x = 15,626,176,225,806,024
  5. Step 5: Solve for x
    x = 15,626,176,225,806,024/142,846,698.25
  6. Step 6: Final answer
    x = 109,391,231.42

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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.