Home / 120,298,331.10-165,983,240.58-68,087,366.76

Finding the Fourth Proportional to 120,298,331.10, 165,983,240.58 and 68,087,366.76

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Solution

The fourth proportional to 120,298,331.10, 165,983,240.58 and 68,087,366.76 is: 93,944,460.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,298,331.10 : 165,983,240.58 = 68,087,366.76 : x
  2. Step 2: Convert to fraction form
    120,298,331.10/165,983,240.58 = 68,087,366.76/x
  3. Step 3: Cross multiply
    120,298,331.10x = 165,983,240.58 × 68,087,366.76
  4. Step 4: Simplify right side
    120,298,331.10x = 11,301,361,776,817,230
  5. Step 5: Solve for x
    x = 11,301,361,776,817,230/120,298,331.10
  6. Step 6: Final answer
    x = 93,944,460.19

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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.