Home / 87,423,010.37-120,698,200.90-55,651,106.82

Finding the Fourth Proportional to 87,423,010.37, 120,698,200.90 and 55,651,106.82

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Solution

The fourth proportional to 87,423,010.37, 120,698,200.90 and 55,651,106.82 is: 76,833,186.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,423,010.37 : 120,698,200.90 = 55,651,106.82 : x
  2. Step 2: Convert to fraction form
    87,423,010.37/120,698,200.90 = 55,651,106.82/x
  3. Step 3: Cross multiply
    87,423,010.37x = 120,698,200.90 × 55,651,106.82
  4. Step 4: Simplify right side
    87,423,010.37x = 6,716,988,471,267,721
  5. Step 5: Solve for x
    x = 6,716,988,471,267,721/87,423,010.37
  6. Step 6: Final answer
    x = 76,833,186.63

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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.