Home / 21,062,703.70-31,594,055.55-18,711,241.30

Finding the Fourth Proportional to 21,062,703.70, 31,594,055.55 and 18,711,241.30

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Solution

The fourth proportional to 21,062,703.70, 31,594,055.55 and 18,711,241.30 is: 28,066,861.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062,703.70 : 31,594,055.55 = 18,711,241.30 : x
  2. Step 2: Convert to fraction form
    21,062,703.70/31,594,055.55 = 18,711,241.30/x
  3. Step 3: Cross multiply
    21,062,703.70x = 31,594,055.55 × 18,711,241.30
  4. Step 4: Simplify right side
    21,062,703.70x = 591,163,997,041,654.25
  5. Step 5: Solve for x
    x = 591,163,997,041,654.25/21,062,703.70
  6. Step 6: Final answer
    x = 28,066,861.95

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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.