Home / 260,566,648.40-390,849,972.60-132,899,243.60

Finding the Fourth Proportional to 260,566,648.40, 390,849,972.60 and 132,899,243.60

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Solution

The fourth proportional to 260,566,648.40, 390,849,972.60 and 132,899,243.60 is: 199,348,865.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,566,648.40 : 390,849,972.60 = 132,899,243.60 : x
  2. Step 2: Convert to fraction form
    260,566,648.40/390,849,972.60 = 132,899,243.60/x
  3. Step 3: Cross multiply
    260,566,648.40x = 390,849,972.60 × 132,899,243.60
  4. Step 4: Simplify right side
    260,566,648.40x = 51,943,665,719,620,728
  5. Step 5: Solve for x
    x = 51,943,665,719,620,728/260,566,648.40
  6. Step 6: Final answer
    x = 199,348,865.40

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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.