Home / 21,273,345.60-31,910,018.40-21,113,913.30

Finding the Fourth Proportional to 21,273,345.60, 31,910,018.40 and 21,113,913.30

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Solution

The fourth proportional to 21,273,345.60, 31,910,018.40 and 21,113,913.30 is: 31,670,869.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273,345.60 : 31,910,018.40 = 21,113,913.30 : x
  2. Step 2: Convert to fraction form
    21,273,345.60/31,910,018.40 = 21,113,913.30/x
  3. Step 3: Cross multiply
    21,273,345.60x = 31,910,018.40 × 21,113,913.30
  4. Step 4: Simplify right side
    21,273,345.60x = 673,745,361,899,004.75
  5. Step 5: Solve for x
    x = 673,745,361,899,004.75/21,273,345.60
  6. Step 6: Final answer
    x = 31,670,869.95

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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.