Home / 30,900,815.76-46,352,994.96-8,181,122.64

Finding the Fourth Proportional to 30,900,815.76, 46,352,994.96 and 8,181,122.64

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Solution

The fourth proportional to 30,900,815.76, 46,352,994.96 and 8,181,122.64 is: 12,272,152.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,900,815.76 : 46,352,994.96 = 8,181,122.64 : x
  2. Step 2: Convert to fraction form
    30,900,815.76/46,352,994.96 = 8,181,122.64/x
  3. Step 3: Cross multiply
    30,900,815.76x = 46,352,994.96 × 8,181,122.64
  4. Step 4: Simplify right side
    30,900,815.76x = 379,219,536,499,061.88
  5. Step 5: Solve for x
    x = 379,219,536,499,061.88/30,900,815.76
  6. Step 6: Final answer
    x = 12,272,152.92

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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.