Home / 918,647,882.30-1,377,971,823.45-838,294,003.10

Finding the Fourth Proportional to 918,647,882.30, 1,377,971,823.45 and 838,294,003.10

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Solution

The fourth proportional to 918,647,882.30, 1,377,971,823.45 and 838,294,003.10 is: 1,257,441,004.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,647,882.30 : 1,377,971,823.45 = 838,294,003.10 : x
  2. Step 2: Convert to fraction form
    918,647,882.30/1,377,971,823.45 = 838,294,003.10/x
  3. Step 3: Cross multiply
    918,647,882.30x = 1,377,971,823.45 × 838,294,003.10
  4. Step 4: Simplify right side
    918,647,882.30x = 1,155,145,516,038,907,136
  5. Step 5: Solve for x
    x = 1,155,145,516,038,907,136/918,647,882.30
  6. Step 6: Final answer
    x = 1,257,441,004.65

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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.