Home / 1,323,869,686.20-1,985,804,529.30-864,704,662.20

Finding the Fourth Proportional to 1,323,869,686.20, 1,985,804,529.30 and 864,704,662.20

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Solution

The fourth proportional to 1,323,869,686.20, 1,985,804,529.30 and 864,704,662.20 is: 1,297,056,993.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,869,686.20 : 1,985,804,529.30 = 864,704,662.20 : x
  2. Step 2: Convert to fraction form
    1,323,869,686.20/1,985,804,529.30 = 864,704,662.20/x
  3. Step 3: Cross multiply
    1,323,869,686.20x = 1,985,804,529.30 × 864,704,662.20
  4. Step 4: Simplify right side
    1,323,869,686.20x = 1,717,134,434,703,586,560
  5. Step 5: Solve for x
    x = 1,717,134,434,703,586,560/1,323,869,686.20
  6. Step 6: Final answer
    x = 1,297,056,993.30

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Double scale
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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.