Home / 989,482,100.40-1,484,391,112.20-299,383,873.20

Finding the Fourth Proportional to 989,482,100.40, 1,484,391,112.20 and 299,383,873.20

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Solution

The fourth proportional to 989,482,100.40, 1,484,391,112.20 and 299,383,873.20 is: 449,126,629.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,482,100.40 : 1,484,391,112.20 = 299,383,873.20 : x
  2. Step 2: Convert to fraction form
    989,482,100.40/1,484,391,112.20 = 299,383,873.20/x
  3. Step 3: Cross multiply
    989,482,100.40x = 1,484,391,112.20 × 299,383,873.20
  4. Step 4: Simplify right side
    989,482,100.40x = 444,402,760,514,091,776
  5. Step 5: Solve for x
    x = 444,402,760,514,091,776/989,482,100.40
  6. Step 6: Final answer
    x = 449,126,629.31

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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.