Home / 1,172,229,433.96-1,617,679,780.20-643,627,657.48

Finding the Fourth Proportional to 1,172,229,433.96, 1,617,679,780.20 and 643,627,657.48

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Solution

The fourth proportional to 1,172,229,433.96, 1,617,679,780.20 and 643,627,657.48 is: 888,207,903.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,229,433.96 : 1,617,679,780.20 = 643,627,657.48 : x
  2. Step 2: Convert to fraction form
    1,172,229,433.96/1,617,679,780.20 = 643,627,657.48/x
  3. Step 3: Cross multiply
    1,172,229,433.96x = 1,617,679,780.20 × 643,627,657.48
  4. Step 4: Simplify right side
    1,172,229,433.96x = 1,041,183,447,482,887,296
  5. Step 5: Solve for x
    x = 1,041,183,447,482,887,296/1,172,229,433.96
  6. Step 6: Final answer
    x = 888,207,903.09

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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.