Home / 56,990,627.34-78,647,132.34-30,885,143.82

Finding the Fourth Proportional to 56,990,627.34, 78,647,132.34 and 30,885,143.82

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Solution

The fourth proportional to 56,990,627.34, 78,647,132.34 and 30,885,143.82 is: 42,621,534.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,990,627.34 : 78,647,132.34 = 30,885,143.82 : x
  2. Step 2: Convert to fraction form
    56,990,627.34/78,647,132.34 = 30,885,143.82/x
  3. Step 3: Cross multiply
    56,990,627.34x = 78,647,132.34 × 30,885,143.82
  4. Step 4: Simplify right side
    56,990,627.34x = 2,429,027,993,351,473.50
  5. Step 5: Solve for x
    x = 2,429,027,993,351,473.50/56,990,627.34
  6. Step 6: Final answer
    x = 42,621,534.57

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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.