Home / 4,878,619.20-6,732,312.84-2,813,721.21

Finding the Fourth Proportional to 4,878,619.20, 6,732,312.84 and 2,813,721.21

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Solution

The fourth proportional to 4,878,619.20, 6,732,312.84 and 2,813,721.21 is: 3,882,830.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878,619.20 : 6,732,312.84 = 2,813,721.21 : x
  2. Step 2: Convert to fraction form
    4,878,619.20/6,732,312.84 = 2,813,721.21/x
  3. Step 3: Cross multiply
    4,878,619.20x = 6,732,312.84 × 2,813,721.21
  4. Step 4: Simplify right side
    4,878,619.20x = 18,942,851,430,263.34
  5. Step 5: Solve for x
    x = 18,942,851,430,263.34/4,878,619.20
  6. Step 6: Final answer
    x = 3,882,830.50

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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.