Home / 19,720,172.70-29,580,259.05-11,637,020.70

Finding the Fourth Proportional to 19,720,172.70, 29,580,259.05 and 11,637,020.70

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Solution

The fourth proportional to 19,720,172.70, 29,580,259.05 and 11,637,020.70 is: 17,455,531.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720,172.70 : 29,580,259.05 = 11,637,020.70 : x
  2. Step 2: Convert to fraction form
    19,720,172.70/29,580,259.05 = 11,637,020.70/x
  3. Step 3: Cross multiply
    19,720,172.70x = 29,580,259.05 × 11,637,020.70
  4. Step 4: Simplify right side
    19,720,172.70x = 344,226,086,876,212.31
  5. Step 5: Solve for x
    x = 344,226,086,876,212.31/19,720,172.70
  6. Step 6: Final answer
    x = 17,455,531.05

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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.