Home / 660,183,316.20-990,274,974.30-315,809,548.20

Finding the Fourth Proportional to 660,183,316.20, 990,274,974.30 and 315,809,548.20

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Solution

The fourth proportional to 660,183,316.20, 990,274,974.30 and 315,809,548.20 is: 473,714,322.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,183,316.20 : 990,274,974.30 = 315,809,548.20 : x
  2. Step 2: Convert to fraction form
    660,183,316.20/990,274,974.30 = 315,809,548.20/x
  3. Step 3: Cross multiply
    660,183,316.20x = 990,274,974.30 × 315,809,548.20
  4. Step 4: Simplify right side
    660,183,316.20x = 312,738,292,227,449,600
  5. Step 5: Solve for x
    x = 312,738,292,227,449,600/660,183,316.20
  6. Step 6: Final answer
    x = 473,714,322.30

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Double scale
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Similar ratio
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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.