Home / 391,462,788.33-540,238,040.69-242,831,798.29

Finding the Fourth Proportional to 391,462,788.33, 540,238,040.69 and 242,831,798.29

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Solution

The fourth proportional to 391,462,788.33, 540,238,040.69 and 242,831,798.29 is: 335,119,911.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,462,788.33 : 540,238,040.69 = 242,831,798.29 : x
  2. Step 2: Convert to fraction form
    391,462,788.33/540,238,040.69 = 242,831,798.29/x
  3. Step 3: Cross multiply
    391,462,788.33x = 540,238,040.69 × 242,831,798.29
  4. Step 4: Simplify right side
    391,462,788.33x = 131,186,974,923,203,760
  5. Step 5: Solve for x
    x = 131,186,974,923,203,760/391,462,788.33
  6. Step 6: Final answer
    x = 335,119,911.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.