Home / 21,167,389.80-31,755,231.90-9,036,829.80

Finding the Fourth Proportional to 21,167,389.80, 31,755,231.90 and 9,036,829.80

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Solution

The fourth proportional to 21,167,389.80, 31,755,231.90 and 9,036,829.80 is: 13,557,015.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167,389.80 : 31,755,231.90 = 9,036,829.80 : x
  2. Step 2: Convert to fraction form
    21,167,389.80/31,755,231.90 = 9,036,829.80/x
  3. Step 3: Cross multiply
    21,167,389.80x = 31,755,231.90 × 9,036,829.80
  4. Step 4: Simplify right side
    21,167,389.80x = 286,966,625,939,830.62
  5. Step 5: Solve for x
    x = 286,966,625,939,830.62/21,167,389.80
  6. Step 6: Final answer
    x = 13,557,015.23

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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.