Home / 1,009,804,813.40-1,514,707,220.10-319,766,072.60

Finding the Fourth Proportional to 1,009,804,813.40, 1,514,707,220.10 and 319,766,072.60

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Solution

The fourth proportional to 1,009,804,813.40, 1,514,707,220.10 and 319,766,072.60 is: 479,649,108.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,804,813.40 : 1,514,707,220.10 = 319,766,072.60 : x
  2. Step 2: Convert to fraction form
    1,009,804,813.40/1,514,707,220.10 = 319,766,072.60/x
  3. Step 3: Cross multiply
    1,009,804,813.40x = 1,514,707,220.10 × 319,766,072.60
  4. Step 4: Simplify right side
    1,009,804,813.40x = 484,351,978,910,240,768
  5. Step 5: Solve for x
    x = 484,351,978,910,240,768/1,009,804,813.40
  6. Step 6: Final answer
    x = 479,649,108.90

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Double scale
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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.