Home / 804,319,921.78-1,206,478,100.12-214,110,295.18

Finding the Fourth Proportional to 804,319,921.78, 1,206,478,100.12 and 214,110,295.18

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Solution

The fourth proportional to 804,319,921.78, 1,206,478,100.12 and 214,110,295.18 is: 321,164,968.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,319,921.78 : 1,206,478,100.12 = 214,110,295.18 : x
  2. Step 2: Convert to fraction form
    804,319,921.78/1,206,478,100.12 = 214,110,295.18/x
  3. Step 3: Cross multiply
    804,319,921.78x = 1,206,478,100.12 × 214,110,295.18
  4. Step 4: Simplify right side
    804,319,921.78x = 258,319,382,144,898,784
  5. Step 5: Solve for x
    x = 258,319,382,144,898,784/804,319,921.78
  6. Step 6: Final answer
    x = 321,164,968.25

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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.