Home / 258,168,646.56-356,272,739.52-142,275,142.56

Finding the Fourth Proportional to 258,168,646.56, 356,272,739.52 and 142,275,142.56

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Solution

The fourth proportional to 258,168,646.56, 356,272,739.52 and 142,275,142.56 is: 196,339,700.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,168,646.56 : 356,272,739.52 = 142,275,142.56 : x
  2. Step 2: Convert to fraction form
    258,168,646.56/356,272,739.52 = 142,275,142.56/x
  3. Step 3: Cross multiply
    258,168,646.56x = 356,272,739.52 × 142,275,142.56
  4. Step 4: Simplify right side
    258,168,646.56x = 50,688,754,805,449,744
  5. Step 5: Solve for x
    x = 50,688,754,805,449,744/258,168,646.56
  6. Step 6: Final answer
    x = 196,339,700.74

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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.