Home / 160,520,238-221,510,515.32-90,906,117.21

Finding the Fourth Proportional to 160,520,238, 221,510,515.32 and 90,906,117.21

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Solution

The fourth proportional to 160,520,238, 221,510,515.32 and 90,906,117.21 is: 125,446,243.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,520,238 : 221,510,515.32 = 90,906,117.21 : x
  2. Step 2: Convert to fraction form
    160,520,238/221,510,515.32 = 90,906,117.21/x
  3. Step 3: Cross multiply
    160,520,238x = 221,510,515.32 × 90,906,117.21
  4. Step 4: Simplify right side
    160,520,238x = 20,136,660,868,927,420
  5. Step 5: Solve for x
    x = 20,136,660,868,927,420/160,520,238
  6. Step 6: Final answer
    x = 125,446,243.54

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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.