Home / 1,331,146,780.20-1,992,893,795.10-814,586,128.20

Finding the Fourth Proportional to 1,331,146,780.20, 1,992,893,795.10 and 814,586,128.20

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Solution

The fourth proportional to 1,331,146,780.20, 1,992,893,795.10 and 814,586,128.20 is: 1,219,537,668.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,146,780.20 : 1,992,893,795.10 = 814,586,128.20 : x
  2. Step 2: Convert to fraction form
    1,331,146,780.20/1,992,893,795.10 = 814,586,128.20/x
  3. Step 3: Cross multiply
    1,331,146,780.20x = 1,992,893,795.10 × 814,586,128.20
  4. Step 4: Simplify right side
    1,331,146,780.20x = 1,623,383,640,464,313,088
  5. Step 5: Solve for x
    x = 1,623,383,640,464,313,088/1,331,146,780.20
  6. Step 6: Final answer
    x = 1,219,537,668.28

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1.5x scale

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.