Home / 213,148,817.52-319,723,020-80,226,492.36

Finding the Fourth Proportional to 213,148,817.52, 319,723,020 and 80,226,492.36

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Solution

The fourth proportional to 213,148,817.52, 319,723,020 and 80,226,492.36 is: 120,339,660.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,148,817.52 : 319,723,020 = 80,226,492.36 : x
  2. Step 2: Convert to fraction form
    213,148,817.52/319,723,020 = 80,226,492.36/x
  3. Step 3: Cross multiply
    213,148,817.52x = 319,723,020 × 80,226,492.36
  4. Step 4: Simplify right side
    213,148,817.52x = 25,650,256,421,346,128
  5. Step 5: Solve for x
    x = 25,650,256,421,346,128/213,148,817.52
  6. Step 6: Final answer
    x = 120,339,660.90

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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.