Home / 839,457,261.12-1,158,453,076.32-468,203,338.56

Finding the Fourth Proportional to 839,457,261.12, 1,158,453,076.32 and 468,203,338.56

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Solution

The fourth proportional to 839,457,261.12, 1,158,453,076.32 and 468,203,338.56 is: 646,121,753.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,457,261.12 : 1,158,453,076.32 = 468,203,338.56 : x
  2. Step 2: Convert to fraction form
    839,457,261.12/1,158,453,076.32 = 468,203,338.56/x
  3. Step 3: Cross multiply
    839,457,261.12x = 1,158,453,076.32 × 468,203,338.56
  4. Step 4: Simplify right side
    839,457,261.12x = 542,391,597,898,126,464
  5. Step 5: Solve for x
    x = 542,391,597,898,126,464/839,457,261.12
  6. Step 6: Final answer
    x = 646,121,753.92

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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.