Home / 988,216,378.79-1,482,272,361.53-324,142,924.29

Finding the Fourth Proportional to 988,216,378.79, 1,482,272,361.53 and 324,142,924.29

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Solution

The fourth proportional to 988,216,378.79, 1,482,272,361.53 and 324,142,924.29 is: 486,197,262.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,216,378.79 : 1,482,272,361.53 = 324,142,924.29 : x
  2. Step 2: Convert to fraction form
    988,216,378.79/1,482,272,361.53 = 324,142,924.29/x
  3. Step 3: Cross multiply
    988,216,378.79x = 1,482,272,361.53 × 324,142,924.29
  4. Step 4: Simplify right side
    988,216,378.79x = 480,468,097,854,598,400
  5. Step 5: Solve for x
    x = 480,468,097,854,598,400/988,216,378.79
  6. Step 6: Final answer
    x = 486,197,262.23

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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.