Home / 21,406,871.78-29,541,699.36-11,617,400.54

Finding the Fourth Proportional to 21,406,871.78, 29,541,699.36 and 11,617,400.54

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Solution

The fourth proportional to 21,406,871.78, 29,541,699.36 and 11,617,400.54 is: 16,032,130.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,406,871.78 : 29,541,699.36 = 11,617,400.54 : x
  2. Step 2: Convert to fraction form
    21,406,871.78/29,541,699.36 = 11,617,400.54/x
  3. Step 3: Cross multiply
    21,406,871.78x = 29,541,699.36 × 11,617,400.54
  4. Step 4: Simplify right side
    21,406,871.78x = 343,197,754,097,381.62
  5. Step 5: Solve for x
    x = 343,197,754,097,381.62/21,406,871.78
  6. Step 6: Final answer
    x = 16,032,130.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.