Home / 290,987,956,517.87-401,559,106,411.89-162,531,279,787.98

Finding the Fourth Proportional to 290,987,956,517.87, 401,559,106,411.89 and 162,531,279,787.98

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Solution

The fourth proportional to 290,987,956,517.87, 401,559,106,411.89 and 162,531,279,787.98 is: 224,290,779,098.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,987,956,517.87 : 401,559,106,411.89 = 162,531,279,787.98 : x
  2. Step 2: Convert to fraction form
    290,987,956,517.87/401,559,106,411.89 = 162,531,279,787.98/x
  3. Step 3: Cross multiply
    290,987,956,517.87x = 401,559,106,411.89 × 162,531,279,787.98
  4. Step 4: Simplify right side
    290,987,956,517.87x = 65,265,915,475,642,132,987,904
  5. Step 5: Solve for x
    x = 65,265,915,475,642,132,987,904/290,987,956,517.87
  6. Step 6: Final answer
    x = 224,290,779,098.39

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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.