Home / 160,782,813-221,880,391.32-90,208,680.72

Finding the Fourth Proportional to 160,782,813, 221,880,391.32 and 90,208,680.72

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Solution

The fourth proportional to 160,782,813, 221,880,391.32 and 90,208,680.72 is: 124,488,040.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,782,813 : 221,880,391.32 = 90,208,680.72 : x
  2. Step 2: Convert to fraction form
    160,782,813/221,880,391.32 = 90,208,680.72/x
  3. Step 3: Cross multiply
    160,782,813x = 221,880,391.32 × 90,208,680.72
  4. Step 4: Simplify right side
    160,782,813x = 20,015,537,378,614,540
  5. Step 5: Solve for x
    x = 20,015,537,378,614,540/160,782,813
  6. Step 6: Final answer
    x = 124,488,040.76

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1.5x scale

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.