Home / 393,487,268.42-542,816,301.02-234,605,337.90

Finding the Fourth Proportional to 393,487,268.42, 542,816,301.02 and 234,605,337.90

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Solution

The fourth proportional to 393,487,268.42, 542,816,301.02 and 234,605,337.90 is: 323,638,429.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,487,268.42 : 542,816,301.02 = 234,605,337.90 : x
  2. Step 2: Convert to fraction form
    393,487,268.42/542,816,301.02 = 234,605,337.90/x
  3. Step 3: Cross multiply
    393,487,268.42x = 542,816,301.02 × 234,605,337.90
  4. Step 4: Simplify right side
    393,487,268.42x = 127,347,601,717,252,192
  5. Step 5: Solve for x
    x = 127,347,601,717,252,192/393,487,268.42
  6. Step 6: Final answer
    x = 323,638,429.85

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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.