Home / 4,877,780.12-6,720,497.56-3,220,985.48

Finding the Fourth Proportional to 4,877,780.12, 6,720,497.56 and 3,220,985.48

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Solution

The fourth proportional to 4,877,780.12, 6,720,497.56 and 3,220,985.48 is: 4,437,802.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877,780.12 : 6,720,497.56 = 3,220,985.48 : x
  2. Step 2: Convert to fraction form
    4,877,780.12/6,720,497.56 = 3,220,985.48/x
  3. Step 3: Cross multiply
    4,877,780.12x = 6,720,497.56 × 3,220,985.48
  4. Step 4: Simplify right side
    4,877,780.12x = 21,646,625,059,135.43
  5. Step 5: Solve for x
    x = 21,646,625,059,135.43/4,877,780.12
  6. Step 6: Final answer
    x = 4,437,802.55

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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.