Home / 1,172,229,432.96-1,617,679,778.82-643,627,656.48

Finding the Fourth Proportional to 1,172,229,432.96, 1,617,679,778.82 and 643,627,656.48

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Solution

The fourth proportional to 1,172,229,432.96, 1,617,679,778.82 and 643,627,656.48 is: 888,207,901.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,229,432.96 : 1,617,679,778.82 = 643,627,656.48 : x
  2. Step 2: Convert to fraction form
    1,172,229,432.96/1,617,679,778.82 = 643,627,656.48/x
  3. Step 3: Cross multiply
    1,172,229,432.96x = 1,617,679,778.82 × 643,627,656.48
  4. Step 4: Simplify right side
    1,172,229,432.96x = 1,041,183,444,977,001,344
  5. Step 5: Solve for x
    x = 1,041,183,444,977,001,344/1,172,229,432.96
  6. Step 6: Final answer
    x = 888,207,901.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.