Home / 77,278,810.24-106,647,314.88-42,472,734.40

Finding the Fourth Proportional to 77,278,810.24, 106,647,314.88 and 42,472,734.40

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Solution

The fourth proportional to 77,278,810.24, 106,647,314.88 and 42,472,734.40 is: 58,613,778.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,278,810.24 : 106,647,314.88 = 42,472,734.40 : x
  2. Step 2: Convert to fraction form
    77,278,810.24/106,647,314.88 = 42,472,734.40/x
  3. Step 3: Cross multiply
    77,278,810.24x = 106,647,314.88 × 42,472,734.40
  4. Step 4: Simplify right side
    77,278,810.24x = 4,529,603,079,371,408
  5. Step 5: Solve for x
    x = 4,529,603,079,371,408/77,278,810.24
  6. Step 6: Final answer
    x = 58,613,778.67

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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.