Home / 1,326,202,187.28-1,988,872,816.14-440,649,728.88

Finding the Fourth Proportional to 1,326,202,187.28, 1,988,872,816.14 and 440,649,728.88

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Solution

The fourth proportional to 1,326,202,187.28, 1,988,872,816.14 and 440,649,728.88 is: 660,831,565.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,202,187.28 : 1,988,872,816.14 = 440,649,728.88 : x
  2. Step 2: Convert to fraction form
    1,326,202,187.28/1,988,872,816.14 = 440,649,728.88/x
  3. Step 3: Cross multiply
    1,326,202,187.28x = 1,988,872,816.14 × 440,649,728.88
  4. Step 4: Simplify right side
    1,326,202,187.28x = 876,396,267,208,893,184
  5. Step 5: Solve for x
    x = 876,396,267,208,893,184/1,326,202,187.28
  6. Step 6: Final answer
    x = 660,831,565.21

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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.