Home / 56,217,921.74-77,579,274.82-31,100,958.98

Finding the Fourth Proportional to 56,217,921.74, 77,579,274.82 and 31,100,958.98

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Solution

The fourth proportional to 56,217,921.74, 77,579,274.82 and 31,100,958.98 is: 42,918,517.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,217,921.74 : 77,579,274.82 = 31,100,958.98 : x
  2. Step 2: Convert to fraction form
    56,217,921.74/77,579,274.82 = 31,100,958.98/x
  3. Step 3: Cross multiply
    56,217,921.74x = 77,579,274.82 × 31,100,958.98
  4. Step 4: Simplify right side
    56,217,921.74x = 2,412,789,843,874,966.50
  5. Step 5: Solve for x
    x = 2,412,789,843,874,966.50/56,217,921.74
  6. Step 6: Final answer
    x = 42,918,517.25

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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.