Home / 3,120,645.80-4,680,968.70-2,553,775.40

Finding the Fourth Proportional to 3,120,645.80, 4,680,968.70 and 2,553,775.40

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Solution

The fourth proportional to 3,120,645.80, 4,680,968.70 and 2,553,775.40 is: 3,830,663.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,645.80 : 4,680,968.70 = 2,553,775.40 : x
  2. Step 2: Convert to fraction form
    3,120,645.80/4,680,968.70 = 2,553,775.40/x
  3. Step 3: Cross multiply
    3,120,645.80x = 4,680,968.70 × 2,553,775.40
  4. Step 4: Simplify right side
    3,120,645.80x = 11,954,142,714,229.98
  5. Step 5: Solve for x
    x = 11,954,142,714,229.98/3,120,645.80
  6. Step 6: Final answer
    x = 3,830,663.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.