Home / 6,878,117.76-9,491,048.88-3,977,069.68

Finding the Fourth Proportional to 6,878,117.76, 9,491,048.88 and 3,977,069.68

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Solution

The fourth proportional to 6,878,117.76, 9,491,048.88 and 3,977,069.68 is: 5,487,920.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,878,117.76 : 9,491,048.88 = 3,977,069.68 : x
  2. Step 2: Convert to fraction form
    6,878,117.76/9,491,048.88 = 3,977,069.68/x
  3. Step 3: Cross multiply
    6,878,117.76x = 9,491,048.88 × 3,977,069.68
  4. Step 4: Simplify right side
    6,878,117.76x = 37,746,562,732,045.96
  5. Step 5: Solve for x
    x = 37,746,562,732,045.96/6,878,117.76
  6. Step 6: Final answer
    x = 5,487,920.39

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1.5x scale

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.