Home / 649,660,961.80-974,491,442.70-322,009,870.60

Finding the Fourth Proportional to 649,660,961.80, 974,491,442.70 and 322,009,870.60

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Solution

The fourth proportional to 649,660,961.80, 974,491,442.70 and 322,009,870.60 is: 483,014,805.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,660,961.80 : 974,491,442.70 = 322,009,870.60 : x
  2. Step 2: Convert to fraction form
    649,660,961.80/974,491,442.70 = 322,009,870.60/x
  3. Step 3: Cross multiply
    649,660,961.80x = 974,491,442.70 × 322,009,870.60
  4. Step 4: Simplify right side
    649,660,961.80x = 313,795,863,364,634,368
  5. Step 5: Solve for x
    x = 313,795,863,364,634,368/649,660,961.80
  6. Step 6: Final answer
    x = 483,014,805.90

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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.