Home / 28,260,229.60-42,390,344.40-21,085,776.10

Finding the Fourth Proportional to 28,260,229.60, 42,390,344.40 and 21,085,776.10

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Solution

The fourth proportional to 28,260,229.60, 42,390,344.40 and 21,085,776.10 is: 31,628,664.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,260,229.60 : 42,390,344.40 = 21,085,776.10 : x
  2. Step 2: Convert to fraction form
    28,260,229.60/42,390,344.40 = 21,085,776.10/x
  3. Step 3: Cross multiply
    28,260,229.60x = 42,390,344.40 × 21,085,776.10
  4. Step 4: Simplify right side
    28,260,229.60x = 893,833,310,820,288.88
  5. Step 5: Solve for x
    x = 893,833,310,820,288.88/28,260,229.60
  6. Step 6: Final answer
    x = 31,628,664.15

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Similar ratio
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1.5x scale

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.