Home / 355,780,970.32-490,982,753.32-204,990,288.48

Finding the Fourth Proportional to 355,780,970.32, 490,982,753.32 and 204,990,288.48

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Solution

The fourth proportional to 355,780,970.32, 490,982,753.32 and 204,990,288.48 is: 282,889,487.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,780,970.32 : 490,982,753.32 = 204,990,288.48 : x
  2. Step 2: Convert to fraction form
    355,780,970.32/490,982,753.32 = 204,990,288.48/x
  3. Step 3: Cross multiply
    355,780,970.32x = 490,982,753.32 × 204,990,288.48
  4. Step 4: Simplify right side
    355,780,970.32x = 100,646,696,241,771,472
  5. Step 5: Solve for x
    x = 100,646,696,241,771,472/355,780,970.32
  6. Step 6: Final answer
    x = 282,889,487.18

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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.