Home / 478,327,814.10-660,092,379.57-258,311,220.66

Finding the Fourth Proportional to 478,327,814.10, 660,092,379.57 and 258,311,220.66

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Solution

The fourth proportional to 478,327,814.10, 660,092,379.57 and 258,311,220.66 is: 356,469,482.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,327,814.10 : 660,092,379.57 = 258,311,220.66 : x
  2. Step 2: Convert to fraction form
    478,327,814.10/660,092,379.57 = 258,311,220.66/x
  3. Step 3: Cross multiply
    478,327,814.10x = 660,092,379.57 × 258,311,220.66
  4. Step 4: Simplify right side
    478,327,814.10x = 170,509,268,315,090,752
  5. Step 5: Solve for x
    x = 170,509,268,315,090,752/478,327,814.10
  6. Step 6: Final answer
    x = 356,469,482.41

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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.