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Finding the Fourth Proportional to 496,692,906.40, 745,039,359.60 and 486,489,239.20

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Solution

The fourth proportional to 496,692,906.40, 745,039,359.60 and 486,489,239.20 is: 729,733,858.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,692,906.40 : 745,039,359.60 = 486,489,239.20 : x
  2. Step 2: Convert to fraction form
    496,692,906.40/745,039,359.60 = 486,489,239.20/x
  3. Step 3: Cross multiply
    496,692,906.40x = 745,039,359.60 × 486,489,239.20
  4. Step 4: Simplify right side
    496,692,906.40x = 362,453,631,225,859,200
  5. Step 5: Solve for x
    x = 362,453,631,225,859,200/496,692,906.40
  6. Step 6: Final answer
    x = 729,733,858.80

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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.