Home / 317,176,002.72-437,856,673.68-212,715,862.56

Finding the Fourth Proportional to 317,176,002.72, 437,856,673.68 and 212,715,862.56

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Solution

The fourth proportional to 317,176,002.72, 437,856,673.68 and 212,715,862.56 is: 293,651,030.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,176,002.72 : 437,856,673.68 = 212,715,862.56 : x
  2. Step 2: Convert to fraction form
    317,176,002.72/437,856,673.68 = 212,715,862.56/x
  3. Step 3: Cross multiply
    317,176,002.72x = 437,856,673.68 × 212,715,862.56
  4. Step 4: Simplify right side
    317,176,002.72x = 93,139,060,019,493,648
  5. Step 5: Solve for x
    x = 93,139,060,019,493,648/317,176,002.72
  6. Step 6: Final answer
    x = 293,651,030.41

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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.