Home / 1,994,543,999.80-2,991,815,999.70-540,521,423.80

Finding the Fourth Proportional to 1,994,543,999.80, 2,991,815,999.70 and 540,521,423.80

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Solution

The fourth proportional to 1,994,543,999.80, 2,991,815,999.70 and 540,521,423.80 is: 810,782,135.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994,543,999.80 : 2,991,815,999.70 = 540,521,423.80 : x
  2. Step 2: Convert to fraction form
    1,994,543,999.80/2,991,815,999.70 = 540,521,423.80/x
  3. Step 3: Cross multiply
    1,994,543,999.80x = 2,991,815,999.70 × 540,521,423.80
  4. Step 4: Simplify right side
    1,994,543,999.80x = 1,617,140,643,905,464,064
  5. Step 5: Solve for x
    x = 1,617,140,643,905,464,064/1,994,543,999.80
  6. Step 6: Final answer
    x = 810,782,135.70

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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.