Home / 490,029,820.80-734,832,154.80-162,378,729.60

Finding the Fourth Proportional to 490,029,820.80, 734,832,154.80 and 162,378,729.60

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Solution

The fourth proportional to 490,029,820.80, 734,832,154.80 and 162,378,729.60 is: 243,497,654.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,029,820.80 : 734,832,154.80 = 162,378,729.60 : x
  2. Step 2: Convert to fraction form
    490,029,820.80/734,832,154.80 = 162,378,729.60/x
  3. Step 3: Cross multiply
    490,029,820.80x = 734,832,154.80 × 162,378,729.60
  4. Step 4: Simplify right side
    490,029,820.80x = 119,321,111,765,654,528
  5. Step 5: Solve for x
    x = 119,321,111,765,654,528/490,029,820.80
  6. Step 6: Final answer
    x = 243,497,654.02

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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.