Home / 368,977,854.92-509,195,492.52-220,311,965.84

Finding the Fourth Proportional to 368,977,854.92, 509,195,492.52 and 220,311,965.84

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Solution

The fourth proportional to 368,977,854.92, 509,195,492.52 and 220,311,965.84 is: 304,034,126.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,977,854.92 : 509,195,492.52 = 220,311,965.84 : x
  2. Step 2: Convert to fraction form
    368,977,854.92/509,195,492.52 = 220,311,965.84/x
  3. Step 3: Cross multiply
    368,977,854.92x = 509,195,492.52 × 220,311,965.84
  4. Step 4: Simplify right side
    368,977,854.92x = 112,181,859,953,948,208
  5. Step 5: Solve for x
    x = 112,181,859,953,948,208/368,977,854.92
  6. Step 6: Final answer
    x = 304,034,126.87

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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.