Home / 68,718,579.48-103,072,509.30-39,946,363.32

Finding the Fourth Proportional to 68,718,579.48, 103,072,509.30 and 39,946,363.32

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Solution

The fourth proportional to 68,718,579.48, 103,072,509.30 and 39,946,363.32 is: 59,916,429.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,718,579.48 : 103,072,509.30 = 39,946,363.32 : x
  2. Step 2: Convert to fraction form
    68,718,579.48/103,072,509.30 = 39,946,363.32/x
  3. Step 3: Cross multiply
    68,718,579.48x = 103,072,509.30 × 39,946,363.32
  4. Step 4: Simplify right side
    68,718,579.48x = 4,117,371,904,801,879
  5. Step 5: Solve for x
    x = 4,117,371,904,801,879/68,718,579.48
  6. Step 6: Final answer
    x = 59,916,429.24

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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.