Home / 478,305,761.01-660,075,939.77-280,048,706.61

Finding the Fourth Proportional to 478,305,761.01, 660,075,939.77 and 280,048,706.61

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Solution

The fourth proportional to 478,305,761.01, 660,075,939.77 and 280,048,706.61 is: 386,475,406.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,305,761.01 : 660,075,939.77 = 280,048,706.61 : x
  2. Step 2: Convert to fraction form
    478,305,761.01/660,075,939.77 = 280,048,706.61/x
  3. Step 3: Cross multiply
    478,305,761.01x = 660,075,939.77 × 280,048,706.61
  4. Step 4: Simplify right side
    478,305,761.01x = 184,853,413,195,568,512
  5. Step 5: Solve for x
    x = 184,853,413,195,568,512/478,305,761.01
  6. Step 6: Final answer
    x = 386,475,406.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.