Home / 100,319,651.52-138,441,609.44-56,269,004.56

Finding the Fourth Proportional to 100,319,651.52, 138,441,609.44 and 56,269,004.56

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Solution

The fourth proportional to 100,319,651.52, 138,441,609.44 and 56,269,004.56 is: 77,651,501.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,319,651.52 : 138,441,609.44 = 56,269,004.56 : x
  2. Step 2: Convert to fraction form
    100,319,651.52/138,441,609.44 = 56,269,004.56/x
  3. Step 3: Cross multiply
    100,319,651.52x = 138,441,609.44 × 56,269,004.56
  4. Step 4: Simplify right side
    100,319,651.52x = 7,789,971,552,873,099
  5. Step 5: Solve for x
    x = 7,789,971,552,873,099/100,319,651.52
  6. Step 6: Final answer
    x = 77,651,501.32

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1.5x scale

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.