Home / 28,778,673.98-39,714,673.20-15,725,932.76

Finding the Fourth Proportional to 28,778,673.98, 39,714,673.20 and 15,725,932.76

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Solution

The fourth proportional to 28,778,673.98, 39,714,673.20 and 15,725,932.76 is: 21,701,843.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,778,673.98 : 39,714,673.20 = 15,725,932.76 : x
  2. Step 2: Convert to fraction form
    28,778,673.98/39,714,673.20 = 15,725,932.76/x
  3. Step 3: Cross multiply
    28,778,673.98x = 39,714,673.20 × 15,725,932.76
  4. Step 4: Simplify right side
    28,778,673.98x = 624,550,280,328,574.12
  5. Step 5: Solve for x
    x = 624,550,280,328,574.12/28,778,673.98
  6. Step 6: Final answer
    x = 21,701,843.55

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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.