Home / 1,218,772,673.15-1,682,421,202.13-822,832,003.94

Finding the Fourth Proportional to 1,218,772,673.15, 1,682,421,202.13 and 822,832,003.94

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Solution

The fourth proportional to 1,218,772,673.15, 1,682,421,202.13 and 822,832,003.94 is: 1,135,855,799.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,772,673.15 : 1,682,421,202.13 = 822,832,003.94 : x
  2. Step 2: Convert to fraction form
    1,218,772,673.15/1,682,421,202.13 = 822,832,003.94/x
  3. Step 3: Cross multiply
    1,218,772,673.15x = 1,682,421,202.13 × 822,832,003.94
  4. Step 4: Simplify right side
    1,218,772,673.15x = 1,384,350,009,207,245,312
  5. Step 5: Solve for x
    x = 1,384,350,009,207,245,312/1,218,772,673.15
  6. Step 6: Final answer
    x = 1,135,855,799.62

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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.