Home / 931,438,693.40-1,397,158,040.10-792,945,168.80

Finding the Fourth Proportional to 931,438,693.40, 1,397,158,040.10 and 792,945,168.80

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Solution

The fourth proportional to 931,438,693.40, 1,397,158,040.10 and 792,945,168.80 is: 1,189,417,753.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,438,693.40 : 1,397,158,040.10 = 792,945,168.80 : x
  2. Step 2: Convert to fraction form
    931,438,693.40/1,397,158,040.10 = 792,945,168.80/x
  3. Step 3: Cross multiply
    931,438,693.40x = 1,397,158,040.10 × 792,945,168.80
  4. Step 4: Simplify right side
    931,438,693.40x = 1,107,869,717,947,371,520
  5. Step 5: Solve for x
    x = 1,107,869,717,947,371,520/931,438,693.40
  6. Step 6: Final answer
    x = 1,189,417,753.20

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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.