Home / 28,190,744.10-42,286,116.15-21,472,280.10

Finding the Fourth Proportional to 28,190,744.10, 42,286,116.15 and 21,472,280.10

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Solution

The fourth proportional to 28,190,744.10, 42,286,116.15 and 21,472,280.10 is: 32,208,420.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,190,744.10 : 42,286,116.15 = 21,472,280.10 : x
  2. Step 2: Convert to fraction form
    28,190,744.10/42,286,116.15 = 21,472,280.10/x
  3. Step 3: Cross multiply
    28,190,744.10x = 42,286,116.15 × 21,472,280.10
  4. Step 4: Simplify right side
    28,190,744.10x = 907,979,330,313,933.62
  5. Step 5: Solve for x
    x = 907,979,330,313,933.62/28,190,744.10
  6. Step 6: Final answer
    x = 32,208,420.15

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Double scale
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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.