Home / 145,223,999.20-217,835,998.80-91,476,287.20

Finding the Fourth Proportional to 145,223,999.20, 217,835,998.80 and 91,476,287.20

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Solution

The fourth proportional to 145,223,999.20, 217,835,998.80 and 91,476,287.20 is: 137,214,430.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,223,999.20 : 217,835,998.80 = 91,476,287.20 : x
  2. Step 2: Convert to fraction form
    145,223,999.20/217,835,998.80 = 91,476,287.20/x
  3. Step 3: Cross multiply
    145,223,999.20x = 217,835,998.80 × 91,476,287.20
  4. Step 4: Simplify right side
    145,223,999.20x = 19,926,828,388,727,656
  5. Step 5: Solve for x
    x = 19,926,828,388,727,656/145,223,999.20
  6. Step 6: Final answer
    x = 137,214,430.80

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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.