Home / 1,280,356,182.72-1,766,893,325.04-693,645,318.72

Finding the Fourth Proportional to 1,280,356,182.72, 1,766,893,325.04 and 693,645,318.72

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Solution

The fourth proportional to 1,280,356,182.72, 1,766,893,325.04 and 693,645,318.72 is: 957,231,511.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,356,182.72 : 1,766,893,325.04 = 693,645,318.72 : x
  2. Step 2: Convert to fraction form
    1,280,356,182.72/1,766,893,325.04 = 693,645,318.72/x
  3. Step 3: Cross multiply
    1,280,356,182.72x = 1,766,893,325.04 × 693,645,318.72
  4. Step 4: Simplify right side
    1,280,356,182.72x = 1,225,597,283,591,611,392
  5. Step 5: Solve for x
    x = 1,225,597,283,591,611,392/1,280,356,182.72
  6. Step 6: Final answer
    x = 957,231,511.15

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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.