Home / 77,821,341.32-107,391,577.86-42,537,563.24

Finding the Fourth Proportional to 77,821,341.32, 107,391,577.86 and 42,537,563.24

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Solution

The fourth proportional to 77,821,341.32, 107,391,577.86 and 42,537,563.24 is: 58,700,813.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,821,341.32 : 107,391,577.86 = 42,537,563.24 : x
  2. Step 2: Convert to fraction form
    77,821,341.32/107,391,577.86 = 42,537,563.24/x
  3. Step 3: Cross multiply
    77,821,341.32x = 107,391,577.86 × 42,537,563.24
  4. Step 4: Simplify right side
    77,821,341.32x = 4,568,176,034,663,134
  5. Step 5: Solve for x
    x = 4,568,176,034,663,134/77,821,341.32
  6. Step 6: Final answer
    x = 58,700,813.39

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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.