Home / 128,203,379.10-192,305,068.65-37,329,932.70

Finding the Fourth Proportional to 128,203,379.10, 192,305,068.65 and 37,329,932.70

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Solution

The fourth proportional to 128,203,379.10, 192,305,068.65 and 37,329,932.70 is: 55,994,899.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,203,379.10 : 192,305,068.65 = 37,329,932.70 : x
  2. Step 2: Convert to fraction form
    128,203,379.10/192,305,068.65 = 37,329,932.70/x
  3. Step 3: Cross multiply
    128,203,379.10x = 192,305,068.65 × 37,329,932.70
  4. Step 4: Simplify right side
    128,203,379.10x = 7,178,735,270,573,381
  5. Step 5: Solve for x
    x = 7,178,735,270,573,381/128,203,379.10
  6. Step 6: Final answer
    x = 55,994,899.05

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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.