Home / 326,610,691.40-489,349,166.70-211,536,000.20

Finding the Fourth Proportional to 326,610,691.40, 489,349,166.70 and 211,536,000.20

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Solution

The fourth proportional to 326,610,691.40, 489,349,166.70 and 211,536,000.20 is: 316,936,855.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,610,691.40 : 489,349,166.70 = 211,536,000.20 : x
  2. Step 2: Convert to fraction form
    326,610,691.40/489,349,166.70 = 211,536,000.20/x
  3. Step 3: Cross multiply
    326,610,691.40x = 489,349,166.70 × 211,536,000.20
  4. Step 4: Simplify right side
    326,610,691.40x = 103,514,965,424,921,024
  5. Step 5: Solve for x
    x = 103,514,965,424,921,024/326,610,691.40
  6. Step 6: Final answer
    x = 316,936,855.25

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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.