Home / 121,936,797.66-168,145,584.56-72,367,594.52

Finding the Fourth Proportional to 121,936,797.66, 168,145,584.56 and 72,367,594.52

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Solution

The fourth proportional to 121,936,797.66, 168,145,584.56 and 72,367,594.52 is: 99,791,791.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,936,797.66 : 168,145,584.56 = 72,367,594.52 : x
  2. Step 2: Convert to fraction form
    121,936,797.66/168,145,584.56 = 72,367,594.52/x
  3. Step 3: Cross multiply
    121,936,797.66x = 168,145,584.56 × 72,367,594.52
  4. Step 4: Simplify right side
    121,936,797.66x = 12,168,291,483,714,964
  5. Step 5: Solve for x
    x = 12,168,291,483,714,964/121,936,797.66
  6. Step 6: Final answer
    x = 99,791,791.46

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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.