Home / 100,285,280.10-150,427,920.15-91,675,935.90

Finding the Fourth Proportional to 100,285,280.10, 150,427,920.15 and 91,675,935.90

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Solution

The fourth proportional to 100,285,280.10, 150,427,920.15 and 91,675,935.90 is: 137,513,903.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,285,280.10 : 150,427,920.15 = 91,675,935.90 : x
  2. Step 2: Convert to fraction form
    100,285,280.10/150,427,920.15 = 91,675,935.90/x
  3. Step 3: Cross multiply
    100,285,280.10x = 150,427,920.15 × 91,675,935.90
  4. Step 4: Simplify right side
    100,285,280.10x = 13,790,620,365,241,720
  5. Step 5: Solve for x
    x = 13,790,620,365,241,720/100,285,280.10
  6. Step 6: Final answer
    x = 137,513,903.85

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1.5x scale

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.