Home / 194,018,777.20-291,240,742.20-121,317,648.40

Finding the Fourth Proportional to 194,018,777.20, 291,240,742.20 and 121,317,648.40

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Solution

The fourth proportional to 194,018,777.20, 291,240,742.20 and 121,317,648.40 is: 182,109,394.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,018,777.20 : 291,240,742.20 = 121,317,648.40 : x
  2. Step 2: Convert to fraction form
    194,018,777.20/291,240,742.20 = 121,317,648.40/x
  3. Step 3: Cross multiply
    194,018,777.20x = 291,240,742.20 × 121,317,648.40
  4. Step 4: Simplify right side
    194,018,777.20x = 35,332,641,961,974,644
  5. Step 5: Solve for x
    x = 35,332,641,961,974,644/194,018,777.20
  6. Step 6: Final answer
    x = 182,109,394.11

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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.