Home / 291,254,661.90-436,881,992.85-75,843,909.90

Finding the Fourth Proportional to 291,254,661.90, 436,881,992.85 and 75,843,909.90

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Solution

The fourth proportional to 291,254,661.90, 436,881,992.85 and 75,843,909.90 is: 113,765,864.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,254,661.90 : 436,881,992.85 = 75,843,909.90 : x
  2. Step 2: Convert to fraction form
    291,254,661.90/436,881,992.85 = 75,843,909.90/x
  3. Step 3: Cross multiply
    291,254,661.90x = 436,881,992.85 × 75,843,909.90
  4. Step 4: Simplify right side
    291,254,661.90x = 33,134,838,502,647,848
  5. Step 5: Solve for x
    x = 33,134,838,502,647,848/291,254,661.90
  6. Step 6: Final answer
    x = 113,765,864.85

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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.