Home / 258,450,317.76-356,662,547.34-140,978,208

Finding the Fourth Proportional to 258,450,317.76, 356,662,547.34 and 140,978,208

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Solution

The fourth proportional to 258,450,317.76, 356,662,547.34 and 140,978,208 is: 194,550,531.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,450,317.76 : 356,662,547.34 = 140,978,208 : x
  2. Step 2: Convert to fraction form
    258,450,317.76/356,662,547.34 = 140,978,208/x
  3. Step 3: Cross multiply
    258,450,317.76x = 356,662,547.34 × 140,978,208
  4. Step 4: Simplify right side
    258,450,317.76x = 50,281,646,784,708,360
  5. Step 5: Solve for x
    x = 50,281,646,784,708,360/258,450,317.76
  6. Step 6: Final answer
    x = 194,550,531.88

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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.