Home / 665,343,199.90-998,014,799.85-493,156,315.90

Finding the Fourth Proportional to 665,343,199.90, 998,014,799.85 and 493,156,315.90

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Solution

The fourth proportional to 665,343,199.90, 998,014,799.85 and 493,156,315.90 is: 739,734,473.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,343,199.90 : 998,014,799.85 = 493,156,315.90 : x
  2. Step 2: Convert to fraction form
    665,343,199.90/998,014,799.85 = 493,156,315.90/x
  3. Step 3: Cross multiply
    665,343,199.90x = 998,014,799.85 × 493,156,315.90
  4. Step 4: Simplify right side
    665,343,199.90x = 492,177,301,907,701,888
  5. Step 5: Solve for x
    x = 492,177,301,907,701,888/665,343,199.90
  6. Step 6: Final answer
    x = 739,734,473.85

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Half scale
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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.