Home / 258,450,309.11-356,662,535.43-140,978,199.35

Finding the Fourth Proportional to 258,450,309.11, 356,662,535.43 and 140,978,199.35

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Solution

The fourth proportional to 258,450,309.11, 356,662,535.43 and 140,978,199.35 is: 194,550,519.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,450,309.11 : 356,662,535.43 = 140,978,199.35 : x
  2. Step 2: Convert to fraction form
    258,450,309.11/356,662,535.43 = 140,978,199.35/x
  3. Step 3: Cross multiply
    258,450,309.11x = 356,662,535.43 × 140,978,199.35
  4. Step 4: Simplify right side
    258,450,309.11x = 50,281,642,018,743,664
  5. Step 5: Solve for x
    x = 50,281,642,018,743,664/258,450,309.11
  6. Step 6: Final answer
    x = 194,550,519.95

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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.