Home / 160,782,865.08-221,880,463.16-90,208,732.72

Finding the Fourth Proportional to 160,782,865.08, 221,880,463.16 and 90,208,732.72

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Solution

The fourth proportional to 160,782,865.08, 221,880,463.16 and 90,208,732.72 is: 124,488,112.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,782,865.08 : 221,880,463.16 = 90,208,732.72 : x
  2. Step 2: Convert to fraction form
    160,782,865.08/221,880,463.16 = 90,208,732.72/x
  3. Step 3: Cross multiply
    160,782,865.08x = 221,880,463.16 × 90,208,732.72
  4. Step 4: Simplify right side
    160,782,865.08x = 20,015,555,396,990,248
  5. Step 5: Solve for x
    x = 20,015,555,396,990,248/160,782,865.08
  6. Step 6: Final answer
    x = 124,488,112.51

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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.