Home / 280,028,717.68-386,439,700.44-154,580,986.48

Finding the Fourth Proportional to 280,028,717.68, 386,439,700.44 and 154,580,986.48

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Solution

The fourth proportional to 280,028,717.68, 386,439,700.44 and 154,580,986.48 is: 213,321,800.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,028,717.68 : 386,439,700.44 = 154,580,986.48 : x
  2. Step 2: Convert to fraction form
    280,028,717.68/386,439,700.44 = 154,580,986.48/x
  3. Step 3: Cross multiply
    280,028,717.68x = 386,439,700.44 × 154,580,986.48
  4. Step 4: Simplify right side
    280,028,717.68x = 59,736,230,109,050,888
  5. Step 5: Solve for x
    x = 59,736,230,109,050,888/280,028,717.68
  6. Step 6: Final answer
    x = 213,321,800.01

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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.