Home / 442,544,918.40-663,818,952-135,837,057.60

Finding the Fourth Proportional to 442,544,918.40, 663,818,952 and 135,837,057.60

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Solution

The fourth proportional to 442,544,918.40, 663,818,952 and 135,837,057.60 is: 203,756,069.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,544,918.40 : 663,818,952 = 135,837,057.60 : x
  2. Step 2: Convert to fraction form
    442,544,918.40/663,818,952 = 135,837,057.60/x
  3. Step 3: Cross multiply
    442,544,918.40x = 663,818,952 × 135,837,057.60
  4. Step 4: Simplify right side
    442,544,918.40x = 90,171,213,218,795,632
  5. Step 5: Solve for x
    x = 90,171,213,218,795,632/442,544,918.40
  6. Step 6: Final answer
    x = 203,756,069.65

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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.