Home / 8,323,143.80-12,485,061.30-2,643,207.80

Finding the Fourth Proportional to 8,323,143.80, 12,485,061.30 and 2,643,207.80

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Solution

The fourth proportional to 8,323,143.80, 12,485,061.30 and 2,643,207.80 is: 3,964,921.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,323,143.80 : 12,485,061.30 = 2,643,207.80 : x
  2. Step 2: Convert to fraction form
    8,323,143.80/12,485,061.30 = 2,643,207.80/x
  3. Step 3: Cross multiply
    8,323,143.80x = 12,485,061.30 × 2,643,207.80
  4. Step 4: Simplify right side
    8,323,143.80x = 33,000,611,411,638.14
  5. Step 5: Solve for x
    x = 33,000,611,411,638.14/8,323,143.80
  6. Step 6: Final answer
    x = 3,964,921.45

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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.