Home / 202,107,259.09-278,909,685.68-111,583,665.86

Finding the Fourth Proportional to 202,107,259.09, 278,909,685.68 and 111,583,665.86

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Solution

The fourth proportional to 202,107,259.09, 278,909,685.68 and 111,583,665.86 is: 153,986,379.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,107,259.09 : 278,909,685.68 = 111,583,665.86 : x
  2. Step 2: Convert to fraction form
    202,107,259.09/278,909,685.68 = 111,583,665.86/x
  3. Step 3: Cross multiply
    202,107,259.09x = 278,909,685.68 × 111,583,665.86
  4. Step 4: Simplify right side
    202,107,259.09x = 31,121,765,172,174,104
  5. Step 5: Solve for x
    x = 31,121,765,172,174,104/202,107,259.09
  6. Step 6: Final answer
    x = 153,986,379.87

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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.