Home / 21,167,373.60-31,769,722.80-18,144,064.80

Finding the Fourth Proportional to 21,167,373.60, 31,769,722.80 and 18,144,064.80

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Solution

The fourth proportional to 21,167,373.60, 31,769,722.80 and 18,144,064.80 is: 27,232,094.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167,373.60 : 31,769,722.80 = 18,144,064.80 : x
  2. Step 2: Convert to fraction form
    21,167,373.60/31,769,722.80 = 18,144,064.80/x
  3. Step 3: Cross multiply
    21,167,373.60x = 31,769,722.80 × 18,144,064.80
  4. Step 4: Simplify right side
    21,167,373.60x = 576,431,909,161,237.50
  5. Step 5: Solve for x
    x = 576,431,909,161,237.50/21,167,373.60
  6. Step 6: Final answer
    x = 27,232,094.07

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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.