Home / 317,176,003.72-437,856,675.06-212,715,863.56

Finding the Fourth Proportional to 317,176,003.72, 437,856,675.06 and 212,715,863.56

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Solution

The fourth proportional to 317,176,003.72, 437,856,675.06 and 212,715,863.56 is: 293,651,031.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,176,003.72 : 437,856,675.06 = 212,715,863.56 : x
  2. Step 2: Convert to fraction form
    317,176,003.72/437,856,675.06 = 212,715,863.56/x
  3. Step 3: Cross multiply
    317,176,003.72x = 437,856,675.06 × 212,715,863.56
  4. Step 4: Simplify right side
    317,176,003.72x = 93,139,060,750,898,224
  5. Step 5: Solve for x
    x = 93,139,060,750,898,224/317,176,003.72
  6. Step 6: Final answer
    x = 293,651,031.79

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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.