Home / 8,431,387-11,636,890.32-4,809,715

Finding the Fourth Proportional to 8,431,387, 11,636,890.32 and 4,809,715

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Solution

The fourth proportional to 8,431,387, 11,636,890.32 and 4,809,715 is: 6,638,305.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431,387 : 11,636,890.32 = 4,809,715 : x
  2. Step 2: Convert to fraction form
    8,431,387/11,636,890.32 = 4,809,715/x
  3. Step 3: Cross multiply
    8,431,387x = 11,636,890.32 × 4,809,715
  4. Step 4: Simplify right side
    8,431,387x = 55,970,125,925,458.80
  5. Step 5: Solve for x
    x = 55,970,125,925,458.80/8,431,387
  6. Step 6: Final answer
    x = 6,638,305.88

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1.5x scale

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.