Home / 645,112,809.27-967,666,452.14-178,772,901.21

Finding the Fourth Proportional to 645,112,809.27, 967,666,452.14 and 178,772,901.21

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Solution

The fourth proportional to 645,112,809.27, 967,666,452.14 and 178,772,901.21 is: 268,158,586.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,112,809.27 : 967,666,452.14 = 178,772,901.21 : x
  2. Step 2: Convert to fraction form
    645,112,809.27/967,666,452.14 = 178,772,901.21/x
  3. Step 3: Cross multiply
    645,112,809.27x = 967,666,452.14 × 178,772,901.21
  4. Step 4: Simplify right side
    645,112,809.27x = 172,992,539,051,761,568
  5. Step 5: Solve for x
    x = 172,992,539,051,761,568/645,112,809.27
  6. Step 6: Final answer
    x = 268,158,586.48

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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.