Home / 212,856,004.30-319,284,006.45-210,840,465.10

Finding the Fourth Proportional to 212,856,004.30, 319,284,006.45 and 210,840,465.10

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Solution

The fourth proportional to 212,856,004.30, 319,284,006.45 and 210,840,465.10 is: 316,260,697.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,856,004.30 : 319,284,006.45 = 210,840,465.10 : x
  2. Step 2: Convert to fraction form
    212,856,004.30/319,284,006.45 = 210,840,465.10/x
  3. Step 3: Cross multiply
    212,856,004.30x = 319,284,006.45 × 210,840,465.10
  4. Step 4: Simplify right side
    212,856,004.30x = 67,317,988,418,909,392
  5. Step 5: Solve for x
    x = 67,317,988,418,909,392/212,856,004.30
  6. Step 6: Final answer
    x = 316,260,697.65

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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.