Home / 673,993,147.80-1,010,989,721.70-648,165,115.20

Finding the Fourth Proportional to 673,993,147.80, 1,010,989,721.70 and 648,165,115.20

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Solution

The fourth proportional to 673,993,147.80, 1,010,989,721.70 and 648,165,115.20 is: 972,247,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,993,147.80 : 1,010,989,721.70 = 648,165,115.20 : x
  2. Step 2: Convert to fraction form
    673,993,147.80/1,010,989,721.70 = 648,165,115.20/x
  3. Step 3: Cross multiply
    673,993,147.80x = 1,010,989,721.70 × 648,165,115.20
  4. Step 4: Simplify right side
    673,993,147.80x = 655,288,269,431,696,512
  5. Step 5: Solve for x
    x = 655,288,269,431,696,512/673,993,147.80
  6. Step 6: Final answer
    x = 972,247,672.80

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1.5x scale

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.