Home / 673,993,127.80-1,010,989,691.70-648,165,095.20

Finding the Fourth Proportional to 673,993,127.80, 1,010,989,691.70 and 648,165,095.20

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Solution

The fourth proportional to 673,993,127.80, 1,010,989,691.70 and 648,165,095.20 is: 972,247,642.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,993,127.80 : 1,010,989,691.70 = 648,165,095.20 : x
  2. Step 2: Convert to fraction form
    673,993,127.80/1,010,989,691.70 = 648,165,095.20/x
  3. Step 3: Cross multiply
    673,993,127.80x = 1,010,989,691.70 × 648,165,095.20
  4. Step 4: Simplify right side
    673,993,127.80x = 655,288,229,766,949,248
  5. Step 5: Solve for x
    x = 655,288,229,766,949,248/673,993,127.80
  6. Step 6: Final answer
    x = 972,247,642.80

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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.