Home / 1,009,804,808.40-1,514,707,212.60-319,766,067.60

Finding the Fourth Proportional to 1,009,804,808.40, 1,514,707,212.60 and 319,766,067.60

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Solution

The fourth proportional to 1,009,804,808.40, 1,514,707,212.60 and 319,766,067.60 is: 479,649,101.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,804,808.40 : 1,514,707,212.60 = 319,766,067.60 : x
  2. Step 2: Convert to fraction form
    1,009,804,808.40/1,514,707,212.60 = 319,766,067.60/x
  3. Step 3: Cross multiply
    1,009,804,808.40x = 1,514,707,212.60 × 319,766,067.60
  4. Step 4: Simplify right side
    1,009,804,808.40x = 484,351,968,938,459,200
  5. Step 5: Solve for x
    x = 484,351,968,938,459,200/1,009,804,808.40
  6. Step 6: Final answer
    x = 479,649,101.40

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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.