Home / 21,273,362.10-31,910,043.15-21,113,929.80

Finding the Fourth Proportional to 21,273,362.10, 31,910,043.15 and 21,113,929.80

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Solution

The fourth proportional to 21,273,362.10, 31,910,043.15 and 21,113,929.80 is: 31,670,894.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273,362.10 : 31,910,043.15 = 21,113,929.80 : x
  2. Step 2: Convert to fraction form
    21,273,362.10/31,910,043.15 = 21,113,929.80/x
  3. Step 3: Cross multiply
    21,273,362.10x = 31,910,043.15 × 21,113,929.80
  4. Step 4: Simplify right side
    21,273,362.10x = 673,746,410,984,070.88
  5. Step 5: Solve for x
    x = 673,746,410,984,070.88/21,273,362.10
  6. Step 6: Final answer
    x = 31,670,894.70

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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.