Home / 20,190,547.70-30,285,821.55-7,420,217.30

Finding the Fourth Proportional to 20,190,547.70, 30,285,821.55 and 7,420,217.30

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Solution

The fourth proportional to 20,190,547.70, 30,285,821.55 and 7,420,217.30 is: 11,130,325.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190,547.70 : 30,285,821.55 = 7,420,217.30 : x
  2. Step 2: Convert to fraction form
    20,190,547.70/30,285,821.55 = 7,420,217.30/x
  3. Step 3: Cross multiply
    20,190,547.70x = 30,285,821.55 × 7,420,217.30
  4. Step 4: Simplify right side
    20,190,547.70x = 224,727,377,010,022.81
  5. Step 5: Solve for x
    x = 224,727,377,010,022.81/20,190,547.70
  6. Step 6: Final answer
    x = 11,130,325.95

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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.