Home / 77,821,245.72-107,391,445.92-42,537,466.98

Finding the Fourth Proportional to 77,821,245.72, 107,391,445.92 and 42,537,466.98

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Solution

The fourth proportional to 77,821,245.72, 107,391,445.92 and 42,537,466.98 is: 58,700,680.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,821,245.72 : 107,391,445.92 = 42,537,466.98 : x
  2. Step 2: Convert to fraction form
    77,821,245.72/107,391,445.92 = 42,537,466.98/x
  3. Step 3: Cross multiply
    77,821,245.72x = 107,391,445.92 × 42,537,466.98
  4. Step 4: Simplify right side
    77,821,245.72x = 4,568,160,084,756,455
  5. Step 5: Solve for x
    x = 4,568,160,084,756,455/77,821,245.72
  6. Step 6: Final answer
    x = 58,700,680.55

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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.