Home / 1,009,804,812.40-1,514,707,218.60-319,766,071.60

Finding the Fourth Proportional to 1,009,804,812.40, 1,514,707,218.60 and 319,766,071.60

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Solution

The fourth proportional to 1,009,804,812.40, 1,514,707,218.60 and 319,766,071.60 is: 479,649,107.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,804,812.40 : 1,514,707,218.60 = 319,766,071.60 : x
  2. Step 2: Convert to fraction form
    1,009,804,812.40/1,514,707,218.60 = 319,766,071.60/x
  3. Step 3: Cross multiply
    1,009,804,812.40x = 1,514,707,218.60 × 319,766,071.60
  4. Step 4: Simplify right side
    1,009,804,812.40x = 484,351,976,915,884,480
  5. Step 5: Solve for x
    x = 484,351,976,915,884,480/1,009,804,812.40
  6. Step 6: Final answer
    x = 479,649,107.40

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Double scale
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Similar ratio
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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.