Home / 354,294,710.80-531,442,066.20-217,536,643.60

Finding the Fourth Proportional to 354,294,710.80, 531,442,066.20 and 217,536,643.60

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Solution

The fourth proportional to 354,294,710.80, 531,442,066.20 and 217,536,643.60 is: 326,304,965.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,294,710.80 : 531,442,066.20 = 217,536,643.60 : x
  2. Step 2: Convert to fraction form
    354,294,710.80/531,442,066.20 = 217,536,643.60/x
  3. Step 3: Cross multiply
    354,294,710.80x = 531,442,066.20 × 217,536,643.60
  4. Step 4: Simplify right side
    354,294,710.80x = 115,608,123,348,997,008
  5. Step 5: Solve for x
    x = 115,608,123,348,997,008/354,294,710.80
  6. Step 6: Final answer
    x = 326,304,965.40

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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.