Home / 42,968,235.12-64,451,714.82-10,620,135.90

Finding the Fourth Proportional to 42,968,235.12, 64,451,714.82 and 10,620,135.90

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Solution

The fourth proportional to 42,968,235.12, 64,451,714.82 and 10,620,135.90 is: 15,930,046.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,968,235.12 : 64,451,714.82 = 10,620,135.90 : x
  2. Step 2: Convert to fraction form
    42,968,235.12/64,451,714.82 = 10,620,135.90/x
  3. Step 3: Cross multiply
    42,968,235.12x = 64,451,714.82 × 10,620,135.90
  4. Step 4: Simplify right side
    42,968,235.12x = 684,485,970,376,444.12
  5. Step 5: Solve for x
    x = 684,485,970,376,444.12/42,968,235.12
  6. Step 6: Final answer
    x = 15,930,046.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.