Home / 1,005,119,831,999.40-1,387,063,479,299.80-548,378,625,369.84

Finding the Fourth Proportional to 1,005,119,831,999.40, 1,387,063,479,299.80 and 548,378,625,369.84

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Solution

The fourth proportional to 1,005,119,831,999.40, 1,387,063,479,299.80 and 548,378,625,369.84 is: 756,761,472,476.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,119,831,999.40 : 1,387,063,479,299.80 = 548,378,625,369.84 : x
  2. Step 2: Convert to fraction form
    1,005,119,831,999.40/1,387,063,479,299.80 = 548,378,625,369.84/x
  3. Step 3: Cross multiply
    1,005,119,831,999.40x = 1,387,063,479,299.80 × 548,378,625,369.84
  4. Step 4: Simplify right side
    1,005,119,831,999.40x = 760,635,964,079,131,894,743,040
  5. Step 5: Solve for x
    x = 760,635,964,079,131,894,743,040/1,005,119,831,999.40
  6. Step 6: Final answer
    x = 756,761,472,476.43

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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.