Home / 85,536,345.20-128,257,278.60-27,998,999.60

Finding the Fourth Proportional to 85,536,345.20, 128,257,278.60 and 27,998,999.60

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Solution

The fourth proportional to 85,536,345.20, 128,257,278.60 and 27,998,999.60 is: 41,983,036.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,536,345.20 : 128,257,278.60 = 27,998,999.60 : x
  2. Step 2: Convert to fraction form
    85,536,345.20/128,257,278.60 = 27,998,999.60/x
  3. Step 3: Cross multiply
    85,536,345.20x = 128,257,278.60 × 27,998,999.60
  4. Step 4: Simplify right side
    85,536,345.20x = 3,591,075,492,218,488.50
  5. Step 5: Solve for x
    x = 3,591,075,492,218,488.50/85,536,345.20
  6. Step 6: Final answer
    x = 41,983,036.38

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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.