Home / 280,335,946.80-386,867,665.56-154,891,028.88

Finding the Fourth Proportional to 280,335,946.80, 386,867,665.56 and 154,891,028.88

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Solution

The fourth proportional to 280,335,946.80, 386,867,665.56 and 154,891,028.88 is: 213,751,862.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,335,946.80 : 386,867,665.56 = 154,891,028.88 : x
  2. Step 2: Convert to fraction form
    280,335,946.80/386,867,665.56 = 154,891,028.88/x
  3. Step 3: Cross multiply
    280,335,946.80x = 386,867,665.56 × 154,891,028.88
  4. Step 4: Simplify right side
    280,335,946.80x = 59,922,330,758,992,136
  5. Step 5: Solve for x
    x = 59,922,330,758,992,136/280,335,946.80
  6. Step 6: Final answer
    x = 213,751,862.52

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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.