Home / 6,985,605.70-10,478,408.55-6,654,931.30

Finding the Fourth Proportional to 6,985,605.70, 10,478,408.55 and 6,654,931.30

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Solution

The fourth proportional to 6,985,605.70, 10,478,408.55 and 6,654,931.30 is: 9,982,396.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985,605.70 : 10,478,408.55 = 6,654,931.30 : x
  2. Step 2: Convert to fraction form
    6,985,605.70/10,478,408.55 = 6,654,931.30/x
  3. Step 3: Cross multiply
    6,985,605.70x = 10,478,408.55 × 6,654,931.30
  4. Step 4: Simplify right side
    6,985,605.70x = 69,733,089,033,582.62
  5. Step 5: Solve for x
    x = 69,733,089,033,582.62/6,985,605.70
  6. Step 6: Final answer
    x = 9,982,396.95

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Double scale
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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.