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Finding the Fourth Proportional to 8,696,300.40, 12,985,891.62 and 7,102,028.40

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Solution

The fourth proportional to 8,696,300.40, 12,985,891.62 and 7,102,028.40 is: 10,605,219.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,696,300.40 : 12,985,891.62 = 7,102,028.40 : x
  2. Step 2: Convert to fraction form
    8,696,300.40/12,985,891.62 = 7,102,028.40/x
  3. Step 3: Cross multiply
    8,696,300.40x = 12,985,891.62 × 7,102,028.40
  4. Step 4: Simplify right side
    8,696,300.40x = 92,226,171,084,562
  5. Step 5: Solve for x
    x = 92,226,171,084,562/8,696,300.40
  6. Step 6: Final answer
    x = 10,605,219.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.