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Finding the Fourth Proportional to 8,697,671.88, 12,002,949.81 and 4,830,555.30

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Solution

The fourth proportional to 8,697,671.88, 12,002,949.81 and 4,830,555.30 is: 6,666,256.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697,671.88 : 12,002,949.81 = 4,830,555.30 : x
  2. Step 2: Convert to fraction form
    8,697,671.88/12,002,949.81 = 4,830,555.30/x
  3. Step 3: Cross multiply
    8,697,671.88x = 12,002,949.81 × 4,830,555.30
  4. Step 4: Simplify right side
    8,697,671.88x = 57,980,912,820,329.49
  5. Step 5: Solve for x
    x = 57,980,912,820,329.49/8,697,671.88
  6. Step 6: Final answer
    x = 6,666,256.63

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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.