Home / 514,268,863.08-709,687,130.39-279,321,205.06

Finding the Fourth Proportional to 514,268,863.08, 709,687,130.39 and 279,321,205.06

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Solution

The fourth proportional to 514,268,863.08, 709,687,130.39 and 279,321,205.06 is: 385,461,144.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,268,863.08 : 709,687,130.39 = 279,321,205.06 : x
  2. Step 2: Convert to fraction form
    514,268,863.08/709,687,130.39 = 279,321,205.06/x
  3. Step 3: Cross multiply
    514,268,863.08x = 709,687,130.39 × 279,321,205.06
  4. Step 4: Simplify right side
    514,268,863.08x = 198,230,664,474,221,888
  5. Step 5: Solve for x
    x = 198,230,664,474,221,888/514,268,863.08
  6. Step 6: Final answer
    x = 385,461,144.37

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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.