Home / 28,778,680.83-39,714,685.30-15,725,941.71

Finding the Fourth Proportional to 28,778,680.83, 39,714,685.30 and 15,725,941.71

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Solution

The fourth proportional to 28,778,680.83, 39,714,685.30 and 15,725,941.71 is: 21,701,857.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,778,680.83 : 39,714,685.30 = 15,725,941.71 : x
  2. Step 2: Convert to fraction form
    28,778,680.83/39,714,685.30 = 15,725,941.71/x
  3. Step 3: Cross multiply
    28,778,680.83x = 39,714,685.30 × 15,725,941.71
  4. Step 4: Simplify right side
    28,778,680.83x = 624,550,826,058,793.88
  5. Step 5: Solve for x
    x = 624,550,826,058,793.88/28,778,680.83
  6. Step 6: Final answer
    x = 21,701,857.35

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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.