Home / 208,397,352.43-312,643,643.69-72,082,620.91

Finding the Fourth Proportional to 208,397,352.43, 312,643,643.69 and 72,082,620.91

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Solution

The fourth proportional to 208,397,352.43, 312,643,643.69 and 72,082,620.91 is: 108,140,400.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,397,352.43 : 312,643,643.69 = 72,082,620.91 : x
  2. Step 2: Convert to fraction form
    208,397,352.43/312,643,643.69 = 72,082,620.91/x
  3. Step 3: Cross multiply
    208,397,352.43x = 312,643,643.69 × 72,082,620.91
  4. Step 4: Simplify right side
    208,397,352.43x = 22,536,173,248,027,384
  5. Step 5: Solve for x
    x = 22,536,173,248,027,384/208,397,352.43
  6. Step 6: Final answer
    x = 108,140,400.95

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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.