Home / 788,972,857.20-1,183,459,285.80-329,240,962.80

Finding the Fourth Proportional to 788,972,857.20, 1,183,459,285.80 and 329,240,962.80

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Solution

The fourth proportional to 788,972,857.20, 1,183,459,285.80 and 329,240,962.80 is: 493,861,444.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,972,857.20 : 1,183,459,285.80 = 329,240,962.80 : x
  2. Step 2: Convert to fraction form
    788,972,857.20/1,183,459,285.80 = 329,240,962.80/x
  3. Step 3: Cross multiply
    788,972,857.20x = 1,183,459,285.80 × 329,240,962.80
  4. Step 4: Simplify right side
    788,972,857.20x = 389,643,274,691,392,384
  5. Step 5: Solve for x
    x = 389,643,274,691,392,384/788,972,857.20
  6. Step 6: Final answer
    x = 493,861,444.20

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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.