Home / 99,647,979.60-149,471,969.40-61,184,773.20

Finding the Fourth Proportional to 99,647,979.60, 149,471,969.40 and 61,184,773.20

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Solution

The fourth proportional to 99,647,979.60, 149,471,969.40 and 61,184,773.20 is: 91,777,159.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,647,979.60 : 149,471,969.40 = 61,184,773.20 : x
  2. Step 2: Convert to fraction form
    99,647,979.60/149,471,969.40 = 61,184,773.20/x
  3. Step 3: Cross multiply
    99,647,979.60x = 149,471,969.40 × 61,184,773.20
  4. Step 4: Simplify right side
    99,647,979.60x = 9,145,408,547,496,340
  5. Step 5: Solve for x
    x = 9,145,408,547,496,340/99,647,979.60
  6. Step 6: Final answer
    x = 91,777,159.80

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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.