Home / 160,512,879.39-221,521,434.44-90,910,642.11

Finding the Fourth Proportional to 160,512,879.39, 221,521,434.44 and 90,910,642.11

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Solution

The fourth proportional to 160,512,879.39, 221,521,434.44 and 90,910,642.11 is: 125,464,423.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,512,879.39 : 221,521,434.44 = 90,910,642.11 : x
  2. Step 2: Convert to fraction form
    160,512,879.39/221,521,434.44 = 90,910,642.11/x
  3. Step 3: Cross multiply
    160,512,879.39x = 221,521,434.44 × 90,910,642.11
  4. Step 4: Simplify right side
    160,512,879.39x = 20,138,655,845,614,116
  5. Step 5: Solve for x
    x = 20,138,655,845,614,116/160,512,879.39
  6. Step 6: Final answer
    x = 125,464,423.30

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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.