Home / 28,188,220.70-42,282,331.05-9,019,603.10

Finding the Fourth Proportional to 28,188,220.70, 42,282,331.05 and 9,019,603.10

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Solution

The fourth proportional to 28,188,220.70, 42,282,331.05 and 9,019,603.10 is: 13,529,404.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188,220.70 : 42,282,331.05 = 9,019,603.10 : x
  2. Step 2: Convert to fraction form
    28,188,220.70/42,282,331.05 = 9,019,603.10/x
  3. Step 3: Cross multiply
    28,188,220.70x = 42,282,331.05 × 9,019,603.10
  4. Step 4: Simplify right side
    28,188,220.70x = 381,369,844,213,806.19
  5. Step 5: Solve for x
    x = 381,369,844,213,806.19/28,188,220.70
  6. Step 6: Final answer
    x = 13,529,404.65

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Double scale
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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.