Home / 191,767,515.80-287,619,780.86-82,563,286.60

Finding the Fourth Proportional to 191,767,515.80, 287,619,780.86 and 82,563,286.60

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Solution

The fourth proportional to 191,767,515.80, 287,619,780.86 and 82,563,286.60 is: 123,831,371.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,767,515.80 : 287,619,780.86 = 82,563,286.60 : x
  2. Step 2: Convert to fraction form
    191,767,515.80/287,619,780.86 = 82,563,286.60/x
  3. Step 3: Cross multiply
    191,767,515.80x = 287,619,780.86 × 82,563,286.60
  4. Step 4: Simplify right side
    191,767,515.80x = 23,746,834,398,973,372
  5. Step 5: Solve for x
    x = 23,746,834,398,973,372/191,767,515.80
  6. Step 6: Final answer
    x = 123,831,371.02

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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.