Home / 1,340,869,674.64-2,011,389,552.60-420,782,296.72

Finding the Fourth Proportional to 1,340,869,674.64, 2,011,389,552.60 and 420,782,296.72

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Solution

The fourth proportional to 1,340,869,674.64, 2,011,389,552.60 and 420,782,296.72 is: 631,200,131.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,869,674.64 : 2,011,389,552.60 = 420,782,296.72 : x
  2. Step 2: Convert to fraction form
    1,340,869,674.64/2,011,389,552.60 = 420,782,296.72/x
  3. Step 3: Cross multiply
    1,340,869,674.64x = 2,011,389,552.60 × 420,782,296.72
  4. Step 4: Simplify right side
    1,340,869,674.64x = 846,357,115,541,641,216
  5. Step 5: Solve for x
    x = 846,357,115,541,641,216/1,340,869,674.64
  6. Step 6: Final answer
    x = 631,200,131.94

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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.