Home / 30,618,005.10-45,927,007.65-28,279,664.70

Finding the Fourth Proportional to 30,618,005.10, 45,927,007.65 and 28,279,664.70

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Solution

The fourth proportional to 30,618,005.10, 45,927,007.65 and 28,279,664.70 is: 42,419,497.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,618,005.10 : 45,927,007.65 = 28,279,664.70 : x
  2. Step 2: Convert to fraction form
    30,618,005.10/45,927,007.65 = 28,279,664.70/x
  3. Step 3: Cross multiply
    30,618,005.10x = 45,927,007.65 × 28,279,664.70
  4. Step 4: Simplify right side
    30,618,005.10x = 1,298,800,377,016,335
  5. Step 5: Solve for x
    x = 1,298,800,377,016,335/30,618,005.10
  6. Step 6: Final answer
    x = 42,419,497.05

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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.