Home / 664,440,861.60-996,661,292.40-319,311,266.40

Finding the Fourth Proportional to 664,440,861.60, 996,661,292.40 and 319,311,266.40

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Solution

The fourth proportional to 664,440,861.60, 996,661,292.40 and 319,311,266.40 is: 478,966,899.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,440,861.60 : 996,661,292.40 = 319,311,266.40 : x
  2. Step 2: Convert to fraction form
    664,440,861.60/996,661,292.40 = 319,311,266.40/x
  3. Step 3: Cross multiply
    664,440,861.60x = 996,661,292.40 × 319,311,266.40
  4. Step 4: Simplify right side
    664,440,861.60x = 318,245,179,448,104,640
  5. Step 5: Solve for x
    x = 318,245,179,448,104,640/664,440,861.60
  6. Step 6: Final answer
    x = 478,966,899.60

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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.