Home / 20,695,564.40-31,043,346.60-19,136,670.80

Finding the Fourth Proportional to 20,695,564.40, 31,043,346.60 and 19,136,670.80

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Solution

The fourth proportional to 20,695,564.40, 31,043,346.60 and 19,136,670.80 is: 28,705,006.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695,564.40 : 31,043,346.60 = 19,136,670.80 : x
  2. Step 2: Convert to fraction form
    20,695,564.40/31,043,346.60 = 19,136,670.80/x
  3. Step 3: Cross multiply
    20,695,564.40x = 31,043,346.60 × 19,136,670.80
  4. Step 4: Simplify right side
    20,695,564.40x = 594,066,304,414,499.38
  5. Step 5: Solve for x
    x = 594,066,304,414,499.38/20,695,564.40
  6. Step 6: Final answer
    x = 28,705,006.20

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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.