Home / 12,959,723.17-17,884,074.81-7,158,380.05

Finding the Fourth Proportional to 12,959,723.17, 17,884,074.81 and 7,158,380.05

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Solution

The fourth proportional to 12,959,723.17, 17,884,074.81 and 7,158,380.05 is: 9,878,374.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,959,723.17 : 17,884,074.81 = 7,158,380.05 : x
  2. Step 2: Convert to fraction form
    12,959,723.17/17,884,074.81 = 7,158,380.05/x
  3. Step 3: Cross multiply
    12,959,723.17x = 17,884,074.81 × 7,158,380.05
  4. Step 4: Simplify right side
    12,959,723.17x = 128,021,004,332,611.53
  5. Step 5: Solve for x
    x = 128,021,004,332,611.53/12,959,723.17
  6. Step 6: Final answer
    x = 9,878,374.92

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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.