Home / 21,209,283.04-31,769,784.42-13,494,713.44

Finding the Fourth Proportional to 21,209,283.04, 31,769,784.42 and 13,494,713.44

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Solution

The fourth proportional to 21,209,283.04, 31,769,784.42 and 13,494,713.44 is: 20,213,985.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,209,283.04 : 31,769,784.42 = 13,494,713.44 : x
  2. Step 2: Convert to fraction form
    21,209,283.04/31,769,784.42 = 13,494,713.44/x
  3. Step 3: Cross multiply
    21,209,283.04x = 31,769,784.42 × 13,494,713.44
  4. Step 4: Simplify right side
    21,209,283.04x = 428,724,136,798,476.62
  5. Step 5: Solve for x
    x = 428,724,136,798,476.62/21,209,283.04
  6. Step 6: Final answer
    x = 20,213,985.36

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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.