Home / 28,729,008.67-39,646,987.65-15,676,983.58

Finding the Fourth Proportional to 28,729,008.67, 39,646,987.65 and 15,676,983.58

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Solution

The fourth proportional to 28,729,008.67, 39,646,987.65 and 15,676,983.58 is: 21,634,758.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,729,008.67 : 39,646,987.65 = 15,676,983.58 : x
  2. Step 2: Convert to fraction form
    28,729,008.67/39,646,987.65 = 15,676,983.58/x
  3. Step 3: Cross multiply
    28,729,008.67x = 39,646,987.65 × 15,676,983.58
  4. Step 4: Simplify right side
    28,729,008.67x = 621,545,174,385,512.75
  5. Step 5: Solve for x
    x = 621,545,174,385,512.75/28,729,008.67
  6. Step 6: Final answer
    x = 21,634,758.84

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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.