Home / 77,821,344.32-107,391,582-42,537,566.24

Finding the Fourth Proportional to 77,821,344.32, 107,391,582 and 42,537,566.24

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Solution

The fourth proportional to 77,821,344.32, 107,391,582 and 42,537,566.24 is: 58,700,817.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,821,344.32 : 107,391,582 = 42,537,566.24 : x
  2. Step 2: Convert to fraction form
    77,821,344.32/107,391,582 = 42,537,566.24/x
  3. Step 3: Cross multiply
    77,821,344.32x = 107,391,582 × 42,537,566.24
  4. Step 4: Simplify right side
    77,821,344.32x = 4,568,176,532,943,392
  5. Step 5: Solve for x
    x = 4,568,176,532,943,392/77,821,344.32
  6. Step 6: Final answer
    x = 58,700,817.53

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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.