Home / 154,036,642,857.12-212,538,735,338.58-88,929,941,934.78

Finding the Fourth Proportional to 154,036,642,857.12, 212,538,735,338.58 and 88,929,941,934.78

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Solution

The fourth proportional to 154,036,642,857.12, 212,538,735,338.58 and 88,929,941,934.78 is: 122,704,942,421.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,036,642,857.12 : 212,538,735,338.58 = 88,929,941,934.78 : x
  2. Step 2: Convert to fraction form
    154,036,642,857.12/212,538,735,338.58 = 88,929,941,934.78/x
  3. Step 3: Cross multiply
    154,036,642,857.12x = 212,538,735,338.58 × 88,929,941,934.78
  4. Step 4: Simplify right side
    154,036,642,857.12x = 18,901,057,392,550,642,450,432
  5. Step 5: Solve for x
    x = 18,901,057,392,550,642,450,432/154,036,642,857.12
  6. Step 6: Final answer
    x = 122,704,942,421.28

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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.