Home / 13,228,220.40-19,842,330.60-9,421,090.80

Finding the Fourth Proportional to 13,228,220.40, 19,842,330.60 and 9,421,090.80

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Solution

The fourth proportional to 13,228,220.40, 19,842,330.60 and 9,421,090.80 is: 14,131,636.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,228,220.40 : 19,842,330.60 = 9,421,090.80 : x
  2. Step 2: Convert to fraction form
    13,228,220.40/19,842,330.60 = 9,421,090.80/x
  3. Step 3: Cross multiply
    13,228,220.40x = 19,842,330.60 × 9,421,090.80
  4. Step 4: Simplify right side
    13,228,220.40x = 186,936,398,266,218.50
  5. Step 5: Solve for x
    x = 186,936,398,266,218.50/13,228,220.40
  6. Step 6: Final answer
    x = 14,131,636.20

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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.