Home / 136,284,804.60-204,427,206.90-81,865,246.20

Finding the Fourth Proportional to 136,284,804.60, 204,427,206.90 and 81,865,246.20

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Solution

The fourth proportional to 136,284,804.60, 204,427,206.90 and 81,865,246.20 is: 122,797,869.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,284,804.60 : 204,427,206.90 = 81,865,246.20 : x
  2. Step 2: Convert to fraction form
    136,284,804.60/204,427,206.90 = 81,865,246.20/x
  3. Step 3: Cross multiply
    136,284,804.60x = 204,427,206.90 × 81,865,246.20
  4. Step 4: Simplify right side
    136,284,804.60x = 16,735,483,622,846,840
  5. Step 5: Solve for x
    x = 16,735,483,622,846,840/136,284,804.60
  6. Step 6: Final answer
    x = 122,797,869.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.