Home / 460,646,078.38-690,969,120.30-153,938,191.24

Finding the Fourth Proportional to 460,646,078.38, 690,969,120.30 and 153,938,191.24

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Solution

The fourth proportional to 460,646,078.38, 690,969,120.30 and 153,938,191.24 is: 230,907,287.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,646,078.38 : 690,969,120.30 = 153,938,191.24 : x
  2. Step 2: Convert to fraction form
    460,646,078.38/690,969,120.30 = 153,938,191.24/x
  3. Step 3: Cross multiply
    460,646,078.38x = 690,969,120.30 × 153,938,191.24
  4. Step 4: Simplify right side
    460,646,078.38x = 106,366,536,581,675,968
  5. Step 5: Solve for x
    x = 106,366,536,581,675,968/460,646,078.38
  6. Step 6: Final answer
    x = 230,907,287.77

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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.