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Finding the Fourth Proportional to 8,019,869,978.20, 12,029,804,967.30 and 7,330,555,571.80

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Solution

The fourth proportional to 8,019,869,978.20, 12,029,804,967.30 and 7,330,555,571.80 is: 10,995,833,357.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,019,869,978.20 : 12,029,804,967.30 = 7,330,555,571.80 : x
  2. Step 2: Convert to fraction form
    8,019,869,978.20/12,029,804,967.30 = 7,330,555,571.80/x
  3. Step 3: Cross multiply
    8,019,869,978.20x = 12,029,804,967.30 × 7,330,555,571.80
  4. Step 4: Simplify right side
    8,019,869,978.20x = 88,185,153,830,708,330,496
  5. Step 5: Solve for x
    x = 88,185,153,830,708,330,496/8,019,869,978.20
  6. Step 6: Final answer
    x = 10,995,833,357.70

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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.