Home / 28,778,634.11-39,714,618.24-15,725,892.89

Finding the Fourth Proportional to 28,778,634.11, 39,714,618.24 and 15,725,892.89

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Solution

The fourth proportional to 28,778,634.11, 39,714,618.24 and 15,725,892.89 is: 21,701,788.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,778,634.11 : 39,714,618.24 = 15,725,892.89 : x
  2. Step 2: Convert to fraction form
    28,778,634.11/39,714,618.24 = 15,725,892.89/x
  3. Step 3: Cross multiply
    28,778,634.11x = 39,714,618.24 × 15,725,892.89
  4. Step 4: Simplify right side
    28,778,634.11x = 624,547,832,410,907.25
  5. Step 5: Solve for x
    x = 624,547,832,410,907.25/28,778,634.11
  6. Step 6: Final answer
    x = 21,701,788.56

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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.