Home / 1,390,432,351.20-2,085,900,469.20-698,598,520.80

Finding the Fourth Proportional to 1,390,432,351.20, 2,085,900,469.20 and 698,598,520.80

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Solution

The fourth proportional to 1,390,432,351.20, 2,085,900,469.20 and 698,598,520.80 is: 1,048,024,365.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,432,351.20 : 2,085,900,469.20 = 698,598,520.80 : x
  2. Step 2: Convert to fraction form
    1,390,432,351.20/2,085,900,469.20 = 698,598,520.80/x
  3. Step 3: Cross multiply
    1,390,432,351.20x = 2,085,900,469.20 × 698,598,520.80
  4. Step 4: Simplify right side
    1,390,432,351.20x = 1,457,206,982,319,145,984
  5. Step 5: Solve for x
    x = 1,457,206,982,319,145,984/1,390,432,351.20
  6. Step 6: Final answer
    x = 1,048,024,365.27

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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.