Home / 154,472,342.91-212,968,987.14-111,471,528.48

Finding the Fourth Proportional to 154,472,342.91, 212,968,987.14 and 111,471,528.48

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Solution

The fourth proportional to 154,472,342.91, 212,968,987.14 and 111,471,528.48 is: 153,684,329.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,472,342.91 : 212,968,987.14 = 111,471,528.48 : x
  2. Step 2: Convert to fraction form
    154,472,342.91/212,968,987.14 = 111,471,528.48/x
  3. Step 3: Cross multiply
    154,472,342.91x = 212,968,987.14 × 111,471,528.48
  4. Step 4: Simplify right side
    154,472,342.91x = 23,739,978,515,333,264
  5. Step 5: Solve for x
    x = 23,739,978,515,333,264/154,472,342.91
  6. Step 6: Final answer
    x = 153,684,329.95

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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.