Home / 7,980,001.40-11,970,002.10-5,460,577.40

Finding the Fourth Proportional to 7,980,001.40, 11,970,002.10 and 5,460,577.40

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Solution

The fourth proportional to 7,980,001.40, 11,970,002.10 and 5,460,577.40 is: 8,190,866.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980,001.40 : 11,970,002.10 = 5,460,577.40 : x
  2. Step 2: Convert to fraction form
    7,980,001.40/11,970,002.10 = 5,460,577.40/x
  3. Step 3: Cross multiply
    7,980,001.40x = 11,970,002.10 × 5,460,577.40
  4. Step 4: Simplify right side
    7,980,001.40x = 65,363,122,945,212.54
  5. Step 5: Solve for x
    x = 65,363,122,945,212.54/7,980,001.40
  6. Step 6: Final answer
    x = 8,190,866.10

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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.