Home / 261,068,999.32-391,648,113.06-107,631,178.84

Finding the Fourth Proportional to 261,068,999.32, 391,648,113.06 and 107,631,178.84

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Solution

The fourth proportional to 261,068,999.32, 391,648,113.06 and 107,631,178.84 is: 161,465,161.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,068,999.32 : 391,648,113.06 = 107,631,178.84 : x
  2. Step 2: Convert to fraction form
    261,068,999.32/391,648,113.06 = 107,631,178.84/x
  3. Step 3: Cross multiply
    261,068,999.32x = 391,648,113.06 × 107,631,178.84
  4. Step 4: Simplify right side
    261,068,999.32x = 42,153,548,099,109,400
  5. Step 5: Solve for x
    x = 42,153,548,099,109,400/261,068,999.32
  6. Step 6: Final answer
    x = 161,465,161.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.