Home / 281,228,634.36-388,111,513.59-157,468,228.92

Finding the Fourth Proportional to 281,228,634.36, 388,111,513.59 and 157,468,228.92

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Solution

The fourth proportional to 281,228,634.36, 388,111,513.59 and 157,468,228.92 is: 217,315,113.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,228,634.36 : 388,111,513.59 = 157,468,228.92 : x
  2. Step 2: Convert to fraction form
    281,228,634.36/388,111,513.59 = 157,468,228.92/x
  3. Step 3: Cross multiply
    281,228,634.36x = 388,111,513.59 × 157,468,228.92
  4. Step 4: Simplify right side
    281,228,634.36x = 61,115,232,668,477,800
  5. Step 5: Solve for x
    x = 61,115,232,668,477,800/281,228,634.36
  6. Step 6: Final answer
    x = 217,315,113.76

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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.