Home / 1,189,728,020.20-1,784,592,030.30-372,090,951.40

Finding the Fourth Proportional to 1,189,728,020.20, 1,784,592,030.30 and 372,090,951.40

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Solution

The fourth proportional to 1,189,728,020.20, 1,784,592,030.30 and 372,090,951.40 is: 558,136,427.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,728,020.20 : 1,784,592,030.30 = 372,090,951.40 : x
  2. Step 2: Convert to fraction form
    1,189,728,020.20/1,784,592,030.30 = 372,090,951.40/x
  3. Step 3: Cross multiply
    1,189,728,020.20x = 1,784,592,030.30 × 372,090,951.40
  4. Step 4: Simplify right side
    1,189,728,020.20x = 664,030,546,415,184,512
  5. Step 5: Solve for x
    x = 664,030,546,415,184,512/1,189,728,020.20
  6. Step 6: Final answer
    x = 558,136,427.10

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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.