Home / 1,179,936,658.60-1,769,904,987.90-812,604,639.40

Finding the Fourth Proportional to 1,179,936,658.60, 1,769,904,987.90 and 812,604,639.40

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Solution

The fourth proportional to 1,179,936,658.60, 1,769,904,987.90 and 812,604,639.40 is: 1,218,906,959.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,936,658.60 : 1,769,904,987.90 = 812,604,639.40 : x
  2. Step 2: Convert to fraction form
    1,179,936,658.60/1,769,904,987.90 = 812,604,639.40/x
  3. Step 3: Cross multiply
    1,179,936,658.60x = 1,769,904,987.90 × 812,604,639.40
  4. Step 4: Simplify right side
    1,179,936,658.60x = 1,438,233,004,464,740,864
  5. Step 5: Solve for x
    x = 1,438,233,004,464,740,864/1,179,936,658.60
  6. Step 6: Final answer
    x = 1,218,906,959.10

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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.