Home / 556,116,652.80-834,174,979.20-427,374,086.40

Finding the Fourth Proportional to 556,116,652.80, 834,174,979.20 and 427,374,086.40

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Solution

The fourth proportional to 556,116,652.80, 834,174,979.20 and 427,374,086.40 is: 641,061,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,116,652.80 : 834,174,979.20 = 427,374,086.40 : x
  2. Step 2: Convert to fraction form
    556,116,652.80/834,174,979.20 = 427,374,086.40/x
  3. Step 3: Cross multiply
    556,116,652.80x = 834,174,979.20 × 427,374,086.40
  4. Step 4: Simplify right side
    556,116,652.80x = 356,504,769,633,339,008
  5. Step 5: Solve for x
    x = 356,504,769,633,339,008/556,116,652.80
  6. Step 6: Final answer
    x = 641,061,129.60

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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.