Home / 889,622,886.38-1,227,689,569.72-508,195,435.92

Finding the Fourth Proportional to 889,622,886.38, 1,227,689,569.72 and 508,195,435.92

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Solution

The fourth proportional to 889,622,886.38, 1,227,689,569.72 and 508,195,435.92 is: 701,315,406.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,622,886.38 : 1,227,689,569.72 = 508,195,435.92 : x
  2. Step 2: Convert to fraction form
    889,622,886.38/1,227,689,569.72 = 508,195,435.92/x
  3. Step 3: Cross multiply
    889,622,886.38x = 1,227,689,569.72 × 508,195,435.92
  4. Step 4: Simplify right side
    889,622,886.38x = 623,906,236,058,292,608
  5. Step 5: Solve for x
    x = 623,906,236,058,292,608/889,622,886.38
  6. Step 6: Final answer
    x = 701,315,406.35

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.