Home / 321,645,298.32-442,749,899.88-280,321,146

Finding the Fourth Proportional to 321,645,298.32, 442,749,899.88 and 280,321,146

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Solution

The fourth proportional to 321,645,298.32, 442,749,899.88 and 280,321,146 is: 385,866,542.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,645,298.32 : 442,749,899.88 = 280,321,146 : x
  2. Step 2: Convert to fraction form
    321,645,298.32/442,749,899.88 = 280,321,146/x
  3. Step 3: Cross multiply
    321,645,298.32x = 442,749,899.88 × 280,321,146
  4. Step 4: Simplify right side
    321,645,298.32x = 124,112,159,325,746,864
  5. Step 5: Solve for x
    x = 124,112,159,325,746,864/321,645,298.32
  6. Step 6: Final answer
    x = 385,866,542.97

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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.