Home / 28,750,678.76-39,675,636.24-15,697,897.28

Finding the Fourth Proportional to 28,750,678.76, 39,675,636.24 and 15,697,897.28

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Solution

The fourth proportional to 28,750,678.76, 39,675,636.24 and 15,697,897.28 is: 21,662,934.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,750,678.76 : 39,675,636.24 = 15,697,897.28 : x
  2. Step 2: Convert to fraction form
    28,750,678.76/39,675,636.24 = 15,697,897.28/x
  3. Step 3: Cross multiply
    28,750,678.76x = 39,675,636.24 × 15,697,897.28
  4. Step 4: Simplify right side
    28,750,678.76x = 622,824,062,214,165.38
  5. Step 5: Solve for x
    x = 622,824,062,214,165.38/28,750,678.76
  6. Step 6: Final answer
    x = 21,662,934.20

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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.