Home / 256,260,693.12-384,456,562.24-74,507,871.12

Finding the Fourth Proportional to 256,260,693.12, 384,456,562.24 and 74,507,871.12

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Solution

The fourth proportional to 256,260,693.12, 384,456,562.24 and 74,507,871.12 is: 111,780,857.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,260,693.12 : 384,456,562.24 = 74,507,871.12 : x
  2. Step 2: Convert to fraction form
    256,260,693.12/384,456,562.24 = 74,507,871.12/x
  3. Step 3: Cross multiply
    256,260,693.12x = 384,456,562.24 × 74,507,871.12
  4. Step 4: Simplify right side
    256,260,693.12x = 28,645,039,990,616,180
  5. Step 5: Solve for x
    x = 28,645,039,990,616,180/256,260,693.12
  6. Step 6: Final answer
    x = 111,780,857.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.