Home / 75,697,539.63-113,544,679.91-21,108,671.79

Finding the Fourth Proportional to 75,697,539.63, 113,544,679.91 and 21,108,671.79

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Solution

The fourth proportional to 75,697,539.63, 113,544,679.91 and 21,108,671.79 is: 31,662,553.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,697,539.63 : 113,544,679.91 = 21,108,671.79 : x
  2. Step 2: Convert to fraction form
    75,697,539.63/113,544,679.91 = 21,108,671.79/x
  3. Step 3: Cross multiply
    75,697,539.63x = 113,544,679.91 × 21,108,671.79
  4. Step 4: Simplify right side
    75,697,539.63x = 2,396,777,381,615,253.50
  5. Step 5: Solve for x
    x = 2,396,777,381,615,253.50/75,697,539.63
  6. Step 6: Final answer
    x = 31,662,553.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.