Home / 713,577,801.79-984,744,082.15-400,318,739.76

Finding the Fourth Proportional to 713,577,801.79, 984,744,082.15 and 400,318,739.76

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Solution

The fourth proportional to 713,577,801.79, 984,744,082.15 and 400,318,739.76 is: 552,443,628.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,577,801.79 : 984,744,082.15 = 400,318,739.76 : x
  2. Step 2: Convert to fraction form
    713,577,801.79/984,744,082.15 = 400,318,739.76/x
  3. Step 3: Cross multiply
    713,577,801.79x = 984,744,082.15 × 400,318,739.76
  4. Step 4: Simplify right side
    713,577,801.79x = 394,211,509,955,097,920
  5. Step 5: Solve for x
    x = 394,211,509,955,097,920/713,577,801.79
  6. Step 6: Final answer
    x = 552,443,628.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.