Home / 28,877,081.76-39,850,379.28-17,275,128.48

Finding the Fourth Proportional to 28,877,081.76, 39,850,379.28 and 17,275,128.48

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Solution

The fourth proportional to 28,877,081.76, 39,850,379.28 and 17,275,128.48 is: 23,839,681.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,877,081.76 : 39,850,379.28 = 17,275,128.48 : x
  2. Step 2: Convert to fraction form
    28,877,081.76/39,850,379.28 = 17,275,128.48/x
  3. Step 3: Cross multiply
    28,877,081.76x = 39,850,379.28 × 17,275,128.48
  4. Step 4: Simplify right side
    28,877,081.76x = 688,420,422,038,729.88
  5. Step 5: Solve for x
    x = 688,420,422,038,729.88/28,877,081.76
  6. Step 6: Final answer
    x = 23,839,681.16

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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.