Home / 460,647,167.10-690,970,753.89-153,939,280.38

Finding the Fourth Proportional to 460,647,167.10, 690,970,753.89 and 153,939,280.38

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Solution

The fourth proportional to 460,647,167.10, 690,970,753.89 and 153,939,280.38 is: 230,908,921.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,647,167.10 : 690,970,753.89 = 153,939,280.38 : x
  2. Step 2: Convert to fraction form
    460,647,167.10/690,970,753.89 = 153,939,280.38/x
  3. Step 3: Cross multiply
    460,647,167.10x = 690,970,753.89 × 153,939,280.38
  4. Step 4: Simplify right side
    460,647,167.10x = 106,367,540,617,452,688
  5. Step 5: Solve for x
    x = 106,367,540,617,452,688/460,647,167.10
  6. Step 6: Final answer
    x = 230,908,921.65

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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.