Home / 245,012,787.90-338,132,708.55-135,004,471.74

Finding the Fourth Proportional to 245,012,787.90, 338,132,708.55 and 135,004,471.74

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Solution

The fourth proportional to 245,012,787.90, 338,132,708.55 and 135,004,471.74 is: 186,314,469.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,012,787.90 : 338,132,708.55 = 135,004,471.74 : x
  2. Step 2: Convert to fraction form
    245,012,787.90/338,132,708.55 = 135,004,471.74/x
  3. Step 3: Cross multiply
    245,012,787.90x = 338,132,708.55 × 135,004,471.74
  4. Step 4: Simplify right side
    245,012,787.90x = 45,649,427,695,808,136
  5. Step 5: Solve for x
    x = 45,649,427,695,808,136/245,012,787.90
  6. Step 6: Final answer
    x = 186,314,469.90

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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.