Home / 804,012,912.20-1,206,019,368.30-528,513,897.80

Finding the Fourth Proportional to 804,012,912.20, 1,206,019,368.30 and 528,513,897.80

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Solution

The fourth proportional to 804,012,912.20, 1,206,019,368.30 and 528,513,897.80 is: 792,770,846.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,012,912.20 : 1,206,019,368.30 = 528,513,897.80 : x
  2. Step 2: Convert to fraction form
    804,012,912.20/1,206,019,368.30 = 528,513,897.80/x
  3. Step 3: Cross multiply
    804,012,912.20x = 1,206,019,368.30 × 528,513,897.80
  4. Step 4: Simplify right side
    804,012,912.20x = 637,397,997,162,526,720
  5. Step 5: Solve for x
    x = 637,397,997,162,526,720/804,012,912.20
  6. Step 6: Final answer
    x = 792,770,846.70

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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.