Home / 653,983,690.59-902,519,286.75-356,642,205.66

Finding the Fourth Proportional to 653,983,690.59, 902,519,286.75 and 356,642,205.66

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Solution

The fourth proportional to 653,983,690.59, 902,519,286.75 and 356,642,205.66 is: 492,178,128.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,983,690.59 : 902,519,286.75 = 356,642,205.66 : x
  2. Step 2: Convert to fraction form
    653,983,690.59/902,519,286.75 = 356,642,205.66/x
  3. Step 3: Cross multiply
    653,983,690.59x = 902,519,286.75 × 356,642,205.66
  4. Step 4: Simplify right side
    653,983,690.59x = 321,876,469,077,210,048
  5. Step 5: Solve for x
    x = 321,876,469,077,210,048/653,983,690.59
  6. Step 6: Final answer
    x = 492,178,128.76

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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.