Home / 8,639,645.84-11,921,689.32-4,771,936.40

Finding the Fourth Proportional to 8,639,645.84, 11,921,689.32 and 4,771,936.40

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Solution

The fourth proportional to 8,639,645.84, 11,921,689.32 and 4,771,936.40 is: 6,584,707.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,639,645.84 : 11,921,689.32 = 4,771,936.40 : x
  2. Step 2: Convert to fraction form
    8,639,645.84/11,921,689.32 = 4,771,936.40/x
  3. Step 3: Cross multiply
    8,639,645.84x = 11,921,689.32 × 4,771,936.40
  4. Step 4: Simplify right side
    8,639,645.84x = 56,889,543,215,599.25
  5. Step 5: Solve for x
    x = 56,889,543,215,599.25/8,639,645.84
  6. Step 6: Final answer
    x = 6,584,707.78

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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.