Home / 221,226,357.97-305,246,797.54-127,122,322.69

Finding the Fourth Proportional to 221,226,357.97, 305,246,797.54 and 127,122,322.69

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Solution

The fourth proportional to 221,226,357.97, 305,246,797.54 and 127,122,322.69 is: 175,402,615.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,226,357.97 : 305,246,797.54 = 127,122,322.69 : x
  2. Step 2: Convert to fraction form
    221,226,357.97/305,246,797.54 = 127,122,322.69/x
  3. Step 3: Cross multiply
    221,226,357.97x = 305,246,797.54 × 127,122,322.69
  4. Step 4: Simplify right side
    221,226,357.97x = 38,803,681,896,968,984
  5. Step 5: Solve for x
    x = 38,803,681,896,968,984/221,226,357.97
  6. Step 6: Final answer
    x = 175,402,615.91

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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.