Home / 55,891,313.46-77,129,997.26-31,110,963.21

Finding the Fourth Proportional to 55,891,313.46, 77,129,997.26 and 31,110,963.21

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Solution

The fourth proportional to 55,891,313.46, 77,129,997.26 and 31,110,963.21 is: 42,933,120.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,891,313.46 : 77,129,997.26 = 31,110,963.21 : x
  2. Step 2: Convert to fraction form
    55,891,313.46/77,129,997.26 = 31,110,963.21/x
  3. Step 3: Cross multiply
    55,891,313.46x = 77,129,997.26 × 31,110,963.21
  4. Step 4: Simplify right side
    55,891,313.46x = 2,399,588,507,221,038.50
  5. Step 5: Solve for x
    x = 2,399,588,507,221,038.50/55,891,313.46
  6. Step 6: Final answer
    x = 42,933,120.71

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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.