Home / 919,632,001.70-1,379,448,002.55-819,862,811.30

Finding the Fourth Proportional to 919,632,001.70, 1,379,448,002.55 and 819,862,811.30

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Solution

The fourth proportional to 919,632,001.70, 1,379,448,002.55 and 819,862,811.30 is: 1,229,794,216.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,632,001.70 : 1,379,448,002.55 = 819,862,811.30 : x
  2. Step 2: Convert to fraction form
    919,632,001.70/1,379,448,002.55 = 819,862,811.30/x
  3. Step 3: Cross multiply
    919,632,001.70x = 1,379,448,002.55 × 819,862,811.30
  4. Step 4: Simplify right side
    919,632,001.70x = 1,130,958,117,412,812,416
  5. Step 5: Solve for x
    x = 1,130,958,117,412,812,416/919,632,001.70
  6. Step 6: Final answer
    x = 1,229,794,216.95

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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.