Home / 85,547,500.80-128,321,251.20-49,267,795.20

Finding the Fourth Proportional to 85,547,500.80, 128,321,251.20 and 49,267,795.20

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Solution

The fourth proportional to 85,547,500.80, 128,321,251.20 and 49,267,795.20 is: 73,901,692.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,547,500.80 : 128,321,251.20 = 49,267,795.20 : x
  2. Step 2: Convert to fraction form
    85,547,500.80/128,321,251.20 = 49,267,795.20/x
  3. Step 3: Cross multiply
    85,547,500.80x = 128,321,251.20 × 49,267,795.20
  4. Step 4: Simplify right side
    85,547,500.80x = 6,322,105,123,929,355
  5. Step 5: Solve for x
    x = 6,322,105,123,929,355/85,547,500.80
  6. Step 6: Final answer
    x = 73,901,692.80

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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.