Home / 87,717,544.61-121,012,213.34-52,890,887.28

Finding the Fourth Proportional to 87,717,544.61, 121,012,213.34 and 52,890,887.28

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Solution

The fourth proportional to 87,717,544.61, 121,012,213.34 and 52,890,887.28 is: 72,966,512.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,717,544.61 : 121,012,213.34 = 52,890,887.28 : x
  2. Step 2: Convert to fraction form
    87,717,544.61/121,012,213.34 = 52,890,887.28/x
  3. Step 3: Cross multiply
    87,717,544.61x = 121,012,213.34 × 52,890,887.28
  4. Step 4: Simplify right side
    87,717,544.61x = 6,400,443,335,004,798
  5. Step 5: Solve for x
    x = 6,400,443,335,004,798/87,717,544.61
  6. Step 6: Final answer
    x = 72,966,512.73

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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.