Home / 68,103,411.30-102,155,116.95-45,310,400.10

Finding the Fourth Proportional to 68,103,411.30, 102,155,116.95 and 45,310,400.10

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Solution

The fourth proportional to 68,103,411.30, 102,155,116.95 and 45,310,400.10 is: 67,965,600.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,103,411.30 : 102,155,116.95 = 45,310,400.10 : x
  2. Step 2: Convert to fraction form
    68,103,411.30/102,155,116.95 = 45,310,400.10/x
  3. Step 3: Cross multiply
    68,103,411.30x = 102,155,116.95 × 45,310,400.10
  4. Step 4: Simplify right side
    68,103,411.30x = 4,628,689,221,266,792
  5. Step 5: Solve for x
    x = 4,628,689,221,266,792/68,103,411.30
  6. Step 6: Final answer
    x = 67,965,600.15

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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.