Home / 7,279,421.40-10,919,132.10-5,599,805.40

Finding the Fourth Proportional to 7,279,421.40, 10,919,132.10 and 5,599,805.40

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Solution

The fourth proportional to 7,279,421.40, 10,919,132.10 and 5,599,805.40 is: 8,399,708.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279,421.40 : 10,919,132.10 = 5,599,805.40 : x
  2. Step 2: Convert to fraction form
    7,279,421.40/10,919,132.10 = 5,599,805.40/x
  3. Step 3: Cross multiply
    7,279,421.40x = 10,919,132.10 × 5,599,805.40
  4. Step 4: Simplify right side
    7,279,421.40x = 61,145,014,896,893.34
  5. Step 5: Solve for x
    x = 61,145,014,896,893.34/7,279,421.40
  6. Step 6: Final answer
    x = 8,399,708.10

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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.