Home / 42,679,408.75-64,019,281.23-10,331,259.35

Finding the Fourth Proportional to 42,679,408.75, 64,019,281.23 and 10,331,259.35

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Solution

The fourth proportional to 42,679,408.75, 64,019,281.23 and 10,331,259.35 is: 15,496,929.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,679,408.75 : 64,019,281.23 = 10,331,259.35 : x
  2. Step 2: Convert to fraction form
    42,679,408.75/64,019,281.23 = 10,331,259.35/x
  3. Step 3: Cross multiply
    42,679,408.75x = 64,019,281.23 × 10,331,259.35
  4. Step 4: Simplify right side
    42,679,408.75x = 661,399,797,467,620.62
  5. Step 5: Solve for x
    x = 661,399,797,467,620.62/42,679,408.75
  6. Step 6: Final answer
    x = 15,496,929.71

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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.