Home / 103,448,930.86-142,765,896.72-57,039,041.26

Finding the Fourth Proportional to 103,448,930.86, 142,765,896.72 and 57,039,041.26

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Solution

The fourth proportional to 103,448,930.86, 142,765,896.72 and 57,039,041.26 is: 78,717,390.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,448,930.86 : 142,765,896.72 = 57,039,041.26 : x
  2. Step 2: Convert to fraction form
    103,448,930.86/142,765,896.72 = 57,039,041.26/x
  3. Step 3: Cross multiply
    103,448,930.86x = 142,765,896.72 × 57,039,041.26
  4. Step 4: Simplify right side
    103,448,930.86x = 8,143,229,873,532,978
  5. Step 5: Solve for x
    x = 8,143,229,873,532,978/103,448,930.86
  6. Step 6: Final answer
    x = 78,717,390.37

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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.