Home / 90,929,135.12-136,479,933.09-56,280,728.48

Finding the Fourth Proportional to 90,929,135.12, 136,479,933.09 and 56,280,728.48

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Solution

The fourth proportional to 90,929,135.12, 136,479,933.09 and 56,280,728.48 is: 84,474,465.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,929,135.12 : 136,479,933.09 = 56,280,728.48 : x
  2. Step 2: Convert to fraction form
    90,929,135.12/136,479,933.09 = 56,280,728.48/x
  3. Step 3: Cross multiply
    90,929,135.12x = 136,479,933.09 × 56,280,728.48
  4. Step 4: Simplify right side
    90,929,135.12x = 7,681,190,056,524,458
  5. Step 5: Solve for x
    x = 7,681,190,056,524,458/90,929,135.12
  6. Step 6: Final answer
    x = 84,474,465.16

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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.