Home / 135,216,005.10-202,824,007.65-81,468,293.10

Finding the Fourth Proportional to 135,216,005.10, 202,824,007.65 and 81,468,293.10

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Solution

The fourth proportional to 135,216,005.10, 202,824,007.65 and 81,468,293.10 is: 122,202,439.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,216,005.10 : 202,824,007.65 = 81,468,293.10 : x
  2. Step 2: Convert to fraction form
    135,216,005.10/202,824,007.65 = 81,468,293.10/x
  3. Step 3: Cross multiply
    135,216,005.10x = 202,824,007.65 × 81,468,293.10
  4. Step 4: Simplify right side
    135,216,005.10x = 16,523,725,702,946,842
  5. Step 5: Solve for x
    x = 16,523,725,702,946,842/135,216,005.10
  6. Step 6: Final answer
    x = 122,202,439.65

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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.