Home / 68,989,664.52-103,484,496.87-28,039,509.45

Finding the Fourth Proportional to 68,989,664.52, 103,484,496.87 and 28,039,509.45

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Solution

The fourth proportional to 68,989,664.52, 103,484,496.87 and 28,039,509.45 is: 42,059,264.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,989,664.52 : 103,484,496.87 = 28,039,509.45 : x
  2. Step 2: Convert to fraction form
    68,989,664.52/103,484,496.87 = 28,039,509.45/x
  3. Step 3: Cross multiply
    68,989,664.52x = 103,484,496.87 × 28,039,509.45
  4. Step 4: Simplify right side
    68,989,664.52x = 2,901,654,527,914,860.50
  5. Step 5: Solve for x
    x = 2,901,654,527,914,860.50/68,989,664.52
  6. Step 6: Final answer
    x = 42,059,264.21

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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.