Home / 258,450,311.23-356,662,538.36-140,978,201.47

Finding the Fourth Proportional to 258,450,311.23, 356,662,538.36 and 140,978,201.47

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Solution

The fourth proportional to 258,450,311.23, 356,662,538.36 and 140,978,201.47 is: 194,550,522.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,450,311.23 : 356,662,538.36 = 140,978,201.47 : x
  2. Step 2: Convert to fraction form
    258,450,311.23/356,662,538.36 = 140,978,201.47/x
  3. Step 3: Cross multiply
    258,450,311.23x = 356,662,538.36 × 140,978,201.47
  4. Step 4: Simplify right side
    258,450,311.23x = 50,281,643,189,717,688
  5. Step 5: Solve for x
    x = 50,281,643,189,717,688/258,450,311.23
  6. Step 6: Final answer
    x = 194,550,522.89

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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.