Home / 413,939,990.70-621,340,650.29-304,888,297.50

Finding the Fourth Proportional to 413,939,990.70, 621,340,650.29 and 304,888,297.50

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Solution

The fourth proportional to 413,939,990.70, 621,340,650.29 and 304,888,297.50 is: 457,649,652.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,939,990.70 : 621,340,650.29 = 304,888,297.50 : x
  2. Step 2: Convert to fraction form
    413,939,990.70/621,340,650.29 = 304,888,297.50/x
  3. Step 3: Cross multiply
    413,939,990.70x = 621,340,650.29 × 304,888,297.50
  4. Step 4: Simplify right side
    413,939,990.70x = 189,439,493,032,936,544
  5. Step 5: Solve for x
    x = 189,439,493,032,936,544/413,939,990.70
  6. Step 6: Final answer
    x = 457,649,652.82

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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.