Home / 253,218,266.40-379,820,313.36-80,705,431.92

Finding the Fourth Proportional to 253,218,266.40, 379,820,313.36 and 80,705,431.92

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Solution

The fourth proportional to 253,218,266.40, 379,820,313.36 and 80,705,431.92 is: 121,055,889.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,218,266.40 : 379,820,313.36 = 80,705,431.92 : x
  2. Step 2: Convert to fraction form
    253,218,266.40/379,820,313.36 = 80,705,431.92/x
  3. Step 3: Cross multiply
    253,218,266.40x = 379,820,313.36 × 80,705,431.92
  4. Step 4: Simplify right side
    253,218,266.40x = 30,653,562,441,708,548
  5. Step 5: Solve for x
    x = 30,653,562,441,708,548/253,218,266.40
  6. Step 6: Final answer
    x = 121,055,889.36

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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.