Home / 30,692,143.80-42,352,143.74-16,940,222.20

Finding the Fourth Proportional to 30,692,143.80, 42,352,143.74 and 16,940,222.20

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Solution

The fourth proportional to 30,692,143.80, 42,352,143.74 and 16,940,222.20 is: 23,375,842.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,692,143.80 : 42,352,143.74 = 16,940,222.20 : x
  2. Step 2: Convert to fraction form
    30,692,143.80/42,352,143.74 = 16,940,222.20/x
  3. Step 3: Cross multiply
    30,692,143.80x = 42,352,143.74 × 16,940,222.20
  4. Step 4: Simplify right side
    30,692,143.80x = 717,454,725,601,939
  5. Step 5: Solve for x
    x = 717,454,725,601,939/30,692,143.80
  6. Step 6: Final answer
    x = 23,375,842.70

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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.