Home / 194,018,781.20-291,240,748.20-121,317,652.40

Finding the Fourth Proportional to 194,018,781.20, 291,240,748.20 and 121,317,652.40

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Solution

The fourth proportional to 194,018,781.20, 291,240,748.20 and 121,317,652.40 is: 182,109,400.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,018,781.20 : 291,240,748.20 = 121,317,652.40 : x
  2. Step 2: Convert to fraction form
    194,018,781.20/291,240,748.20 = 121,317,652.40/x
  3. Step 3: Cross multiply
    194,018,781.20x = 291,240,748.20 × 121,317,652.40
  4. Step 4: Simplify right side
    194,018,781.20x = 35,332,643,854,843,524
  5. Step 5: Solve for x
    x = 35,332,643,854,843,524/194,018,781.20
  6. Step 6: Final answer
    x = 182,109,400.11

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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.