Home / 80,906,881.28-111,681,858.93-53,031,387.88

Finding the Fourth Proportional to 80,906,881.28, 111,681,858.93 and 53,031,387.88

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Solution

The fourth proportional to 80,906,881.28, 111,681,858.93 and 53,031,387.88 is: 73,203,216.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,906,881.28 : 111,681,858.93 = 53,031,387.88 : x
  2. Step 2: Convert to fraction form
    80,906,881.28/111,681,858.93 = 53,031,387.88/x
  3. Step 3: Cross multiply
    80,906,881.28x = 111,681,858.93 × 53,031,387.88
  4. Step 4: Simplify right side
    80,906,881.28x = 5,922,643,980,076,272
  5. Step 5: Solve for x
    x = 5,922,643,980,076,272/80,906,881.28
  6. Step 6: Final answer
    x = 73,203,216.91

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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.