Home / 189,911,898.72-284,805,385.20-67,067,933.76

Finding the Fourth Proportional to 189,911,898.72, 284,805,385.20 and 67,067,933.76

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Solution

The fourth proportional to 189,911,898.72, 284,805,385.20 and 67,067,933.76 is: 100,579,841.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,911,898.72 : 284,805,385.20 = 67,067,933.76 : x
  2. Step 2: Convert to fraction form
    189,911,898.72/284,805,385.20 = 67,067,933.76/x
  3. Step 3: Cross multiply
    189,911,898.72x = 284,805,385.20 × 67,067,933.76
  4. Step 4: Simplify right side
    189,911,898.72x = 19,101,308,709,084,884
  5. Step 5: Solve for x
    x = 19,101,308,709,084,884/189,911,898.72
  6. Step 6: Final answer
    x = 100,579,841.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.