Home / 1,236,604,564.80-1,854,906,847.20-418,716,865.80

Finding the Fourth Proportional to 1,236,604,564.80, 1,854,906,847.20 and 418,716,865.80

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Solution

The fourth proportional to 1,236,604,564.80, 1,854,906,847.20 and 418,716,865.80 is: 628,075,298.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236,604,564.80 : 1,854,906,847.20 = 418,716,865.80 : x
  2. Step 2: Convert to fraction form
    1,236,604,564.80/1,854,906,847.20 = 418,716,865.80/x
  3. Step 3: Cross multiply
    1,236,604,564.80x = 1,854,906,847.20 × 418,716,865.80
  4. Step 4: Simplify right side
    1,236,604,564.80x = 776,680,781,410,543,488
  5. Step 5: Solve for x
    x = 776,680,781,410,543,488/1,236,604,564.80
  6. Step 6: Final answer
    x = 628,075,298.70

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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.