Home / 154,097,968.12-212,649,552.98-84,481,821.56

Finding the Fourth Proportional to 154,097,968.12, 212,649,552.98 and 84,481,821.56

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Solution

The fourth proportional to 154,097,968.12, 212,649,552.98 and 84,481,821.56 is: 116,581,820.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,097,968.12 : 212,649,552.98 = 84,481,821.56 : x
  2. Step 2: Convert to fraction form
    154,097,968.12/212,649,552.98 = 84,481,821.56/x
  3. Step 3: Cross multiply
    154,097,968.12x = 212,649,552.98 × 84,481,821.56
  4. Step 4: Simplify right side
    154,097,968.12x = 17,965,021,589,670,126
  5. Step 5: Solve for x
    x = 17,965,021,589,670,126/154,097,968.12
  6. Step 6: Final answer
    x = 116,581,820.05

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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.