Home / 931,438,632.40-1,397,157,948.60-792,945,107.80

Finding the Fourth Proportional to 931,438,632.40, 1,397,157,948.60 and 792,945,107.80

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Solution

The fourth proportional to 931,438,632.40, 1,397,157,948.60 and 792,945,107.80 is: 1,189,417,661.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,438,632.40 : 1,397,157,948.60 = 792,945,107.80 : x
  2. Step 2: Convert to fraction form
    931,438,632.40/1,397,157,948.60 = 792,945,107.80/x
  3. Step 3: Cross multiply
    931,438,632.40x = 1,397,157,948.60 × 792,945,107.80
  4. Step 4: Simplify right side
    931,438,632.40x = 1,107,869,560,166,253,696
  5. Step 5: Solve for x
    x = 1,107,869,560,166,253,696/931,438,632.40
  6. Step 6: Final answer
    x = 1,189,417,661.70

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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.