Home / 931,438,638.90-1,397,157,958.35-792,945,114.30

Finding the Fourth Proportional to 931,438,638.90, 1,397,157,958.35 and 792,945,114.30

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Solution

The fourth proportional to 931,438,638.90, 1,397,157,958.35 and 792,945,114.30 is: 1,189,417,671.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,438,638.90 : 1,397,157,958.35 = 792,945,114.30 : x
  2. Step 2: Convert to fraction form
    931,438,638.90/1,397,157,958.35 = 792,945,114.30/x
  3. Step 3: Cross multiply
    931,438,638.90x = 1,397,157,958.35 × 792,945,114.30
  4. Step 4: Simplify right side
    931,438,638.90x = 1,107,869,576,978,995,200
  5. Step 5: Solve for x
    x = 1,107,869,576,978,995,200/931,438,638.90
  6. Step 6: Final answer
    x = 1,189,417,671.45

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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.