Home / 28,392,572.80-42,588,859.20-18,188,905.60

Finding the Fourth Proportional to 28,392,572.80, 42,588,859.20 and 18,188,905.60

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Solution

The fourth proportional to 28,392,572.80, 42,588,859.20 and 18,188,905.60 is: 27,283,358.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,392,572.80 : 42,588,859.20 = 18,188,905.60 : x
  2. Step 2: Convert to fraction form
    28,392,572.80/42,588,859.20 = 18,188,905.60/x
  3. Step 3: Cross multiply
    28,392,572.80x = 42,588,859.20 × 18,188,905.60
  4. Step 4: Simplify right side
    28,392,572.80x = 774,644,739,600,491.62
  5. Step 5: Solve for x
    x = 774,644,739,600,491.62/28,392,572.80
  6. Step 6: Final answer
    x = 27,283,358.40

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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.