Home / 97,215,128.80-145,695,132.24-71,535,896.80

Finding the Fourth Proportional to 97,215,128.80, 145,695,132.24 and 71,535,896.80

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Solution

The fourth proportional to 97,215,128.80, 145,695,132.24 and 71,535,896.80 is: 107,209,979.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,215,128.80 : 145,695,132.24 = 71,535,896.80 : x
  2. Step 2: Convert to fraction form
    97,215,128.80/145,695,132.24 = 71,535,896.80/x
  3. Step 3: Cross multiply
    97,215,128.80x = 145,695,132.24 × 71,535,896.80
  4. Step 4: Simplify right side
    97,215,128.80x = 10,422,431,944,182,994
  5. Step 5: Solve for x
    x = 10,422,431,944,182,994/97,215,128.80
  6. Step 6: Final answer
    x = 107,209,979.28

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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.