Home / 1,279,058,447.20-1,918,587,670.80-734,862,863.20

Finding the Fourth Proportional to 1,279,058,447.20, 1,918,587,670.80 and 734,862,863.20

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Solution

The fourth proportional to 1,279,058,447.20, 1,918,587,670.80 and 734,862,863.20 is: 1,102,294,294.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,058,447.20 : 1,918,587,670.80 = 734,862,863.20 : x
  2. Step 2: Convert to fraction form
    1,279,058,447.20/1,918,587,670.80 = 734,862,863.20/x
  3. Step 3: Cross multiply
    1,279,058,447.20x = 1,918,587,670.80 × 734,862,863.20
  4. Step 4: Simplify right side
    1,279,058,447.20x = 1,409,898,829,064,307,200
  5. Step 5: Solve for x
    x = 1,409,898,829,064,307,200/1,279,058,447.20
  6. Step 6: Final answer
    x = 1,102,294,294.80

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Double scale
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1.5x scale

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.