Home / 251,307,484.32-376,965,892.08-78,780,439.20

Finding the Fourth Proportional to 251,307,484.32, 376,965,892.08 and 78,780,439.20

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Solution

The fourth proportional to 251,307,484.32, 376,965,892.08 and 78,780,439.20 is: 118,172,121.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,307,484.32 : 376,965,892.08 = 78,780,439.20 : x
  2. Step 2: Convert to fraction form
    251,307,484.32/376,965,892.08 = 78,780,439.20/x
  3. Step 3: Cross multiply
    251,307,484.32x = 376,965,892.08 × 78,780,439.20
  4. Step 4: Simplify right side
    251,307,484.32x = 29,697,538,541,482,200
  5. Step 5: Solve for x
    x = 29,697,538,541,482,200/251,307,484.32
  6. Step 6: Final answer
    x = 118,172,121.38

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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.