Home / 28,729,005.17-39,646,982.82-15,676,980.08

Finding the Fourth Proportional to 28,729,005.17, 39,646,982.82 and 15,676,980.08

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Solution

The fourth proportional to 28,729,005.17, 39,646,982.82 and 15,676,980.08 is: 21,634,754.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,729,005.17 : 39,646,982.82 = 15,676,980.08 : x
  2. Step 2: Convert to fraction form
    28,729,005.17/39,646,982.82 = 15,676,980.08/x
  3. Step 3: Cross multiply
    28,729,005.17x = 39,646,982.82 × 15,676,980.08
  4. Step 4: Simplify right side
    28,729,005.17x = 621,544,959,901,242.25
  5. Step 5: Solve for x
    x = 621,544,959,901,242.25/28,729,005.17
  6. Step 6: Final answer
    x = 21,634,754.01

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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.