Home / 212,856,016.30-319,284,024.45-210,840,477.10

Finding the Fourth Proportional to 212,856,016.30, 319,284,024.45 and 210,840,477.10

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Solution

The fourth proportional to 212,856,016.30, 319,284,024.45 and 210,840,477.10 is: 316,260,715.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,856,016.30 : 319,284,024.45 = 210,840,477.10 : x
  2. Step 2: Convert to fraction form
    212,856,016.30/319,284,024.45 = 210,840,477.10/x
  3. Step 3: Cross multiply
    212,856,016.30x = 319,284,024.45 × 210,840,477.10
  4. Step 4: Simplify right side
    212,856,016.30x = 67,317,996,045,446,064
  5. Step 5: Solve for x
    x = 67,317,996,045,446,064/212,856,016.30
  6. Step 6: Final answer
    x = 316,260,715.65

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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.