Home / 5,428,748.80-8,143,123.20-2,590,220.80

Finding the Fourth Proportional to 5,428,748.80, 8,143,123.20 and 2,590,220.80

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Solution

The fourth proportional to 5,428,748.80, 8,143,123.20 and 2,590,220.80 is: 3,885,331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428,748.80 : 8,143,123.20 = 2,590,220.80 : x
  2. Step 2: Convert to fraction form
    5,428,748.80/8,143,123.20 = 2,590,220.80/x
  3. Step 3: Cross multiply
    5,428,748.80x = 8,143,123.20 × 2,590,220.80
  4. Step 4: Simplify right side
    5,428,748.80x = 21,092,487,089,602.56
  5. Step 5: Solve for x
    x = 21,092,487,089,602.56/5,428,748.80
  6. Step 6: Final answer
    x = 3,885,331.20

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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.