Home / 1,218,772,670.90-1,682,421,199.02-822,832,001.69

Finding the Fourth Proportional to 1,218,772,670.90, 1,682,421,199.02 and 822,832,001.69

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Solution

The fourth proportional to 1,218,772,670.90, 1,682,421,199.02 and 822,832,001.69 is: 1,135,855,796.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,772,670.90 : 1,682,421,199.02 = 822,832,001.69 : x
  2. Step 2: Convert to fraction form
    1,218,772,670.90/1,682,421,199.02 = 822,832,001.69/x
  3. Step 3: Cross multiply
    1,218,772,670.90x = 1,682,421,199.02 × 822,832,001.69
  4. Step 4: Simplify right side
    1,218,772,670.90x = 1,384,350,002,866,904,320
  5. Step 5: Solve for x
    x = 1,384,350,002,866,904,320/1,218,772,670.90
  6. Step 6: Final answer
    x = 1,135,855,796.51

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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.