Home / 1,299,213,696.50-1,948,042,285.00-413,516,481.78

Finding the Fourth Proportional to 1,299,213,696.50, 1,948,042,285.00 and 413,516,481.78

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Solution

The fourth proportional to 1,299,213,696.50, 1,948,042,285.00 and 413,516,481.78 is: 620,027,016.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,213,696.50 : 1,948,042,285.00 = 413,516,481.78 : x
  2. Step 2: Convert to fraction form
    1,299,213,696.50/1,948,042,285.00 = 413,516,481.78/x
  3. Step 3: Cross multiply
    1,299,213,696.50x = 1,948,042,285.00 × 413,516,481.78
  4. Step 4: Simplify right side
    1,299,213,696.50x = 805,547,592,050,838,144
  5. Step 5: Solve for x
    x = 805,547,592,050,838,144/1,299,213,696.50
  6. Step 6: Final answer
    x = 620,027,016.51

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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.