Home / 14,003,143.80-21,004,715.70-5,480,647.80

Finding the Fourth Proportional to 14,003,143.80, 21,004,715.70 and 5,480,647.80

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Solution

The fourth proportional to 14,003,143.80, 21,004,715.70 and 5,480,647.80 is: 8,220,971.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,003,143.80 : 21,004,715.70 = 5,480,647.80 : x
  2. Step 2: Convert to fraction form
    14,003,143.80/21,004,715.70 = 5,480,647.80/x
  3. Step 3: Cross multiply
    14,003,143.80x = 21,004,715.70 × 5,480,647.80
  4. Step 4: Simplify right side
    14,003,143.80x = 115,119,448,890,830.45
  5. Step 5: Solve for x
    x = 115,119,448,890,830.45/14,003,143.80
  6. Step 6: Final answer
    x = 8,220,971.70

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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.