Home / 5,250,317.72-7,869,782.16-2,688,018.80

Finding the Fourth Proportional to 5,250,317.72, 7,869,782.16 and 2,688,018.80

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Solution

The fourth proportional to 5,250,317.72, 7,869,782.16 and 2,688,018.80 is: 4,029,112.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,250,317.72 : 7,869,782.16 = 2,688,018.80 : x
  2. Step 2: Convert to fraction form
    5,250,317.72/7,869,782.16 = 2,688,018.80/x
  3. Step 3: Cross multiply
    5,250,317.72x = 7,869,782.16 × 2,688,018.80
  4. Step 4: Simplify right side
    5,250,317.72x = 21,154,122,358,635.70
  5. Step 5: Solve for x
    x = 21,154,122,358,635.70/5,250,317.72
  6. Step 6: Final answer
    x = 4,029,112.81

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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.