Home / 638,118,814.91-880,603,112.30-344,763,382.91

Finding the Fourth Proportional to 638,118,814.91, 880,603,112.30 and 344,763,382.91

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Solution

The fourth proportional to 638,118,814.91, 880,603,112.30 and 344,763,382.91 is: 475,773,007.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,118,814.91 : 880,603,112.30 = 344,763,382.91 : x
  2. Step 2: Convert to fraction form
    638,118,814.91/880,603,112.30 = 344,763,382.91/x
  3. Step 3: Cross multiply
    638,118,814.91x = 880,603,112.30 × 344,763,382.91
  4. Step 4: Simplify right side
    638,118,814.91x = 303,599,707,991,495,744
  5. Step 5: Solve for x
    x = 303,599,707,991,495,744/638,118,814.91
  6. Step 6: Final answer
    x = 475,773,007.94

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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.