Home / 2,791,181,017.80-3,851,855,278.74-1,538,162,831.88

Finding the Fourth Proportional to 2,791,181,017.80, 3,851,855,278.74 and 1,538,162,831.88

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Solution

The fourth proportional to 2,791,181,017.80, 3,851,855,278.74 and 1,538,162,831.88 is: 2,122,678,746.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791,181,017.80 : 3,851,855,278.74 = 1,538,162,831.88 : x
  2. Step 2: Convert to fraction form
    2,791,181,017.80/3,851,855,278.74 = 1,538,162,831.88/x
  3. Step 3: Cross multiply
    2,791,181,017.80x = 3,851,855,278.74 × 1,538,162,831.88
  4. Step 4: Simplify right side
    2,791,181,017.80x = 5,924,780,623,538,644,992
  5. Step 5: Solve for x
    x = 5,924,780,623,538,644,992/2,791,181,017.80
  6. Step 6: Final answer
    x = 2,122,678,746.29

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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.