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Finding the Fourth Proportional to 8,339,664.64, 12,510,430.36 and 2,658,570.88

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Solution

The fourth proportional to 8,339,664.64, 12,510,430.36 and 2,658,570.88 is: 3,988,153.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,339,664.64 : 12,510,430.36 = 2,658,570.88 : x
  2. Step 2: Convert to fraction form
    8,339,664.64/12,510,430.36 = 2,658,570.88/x
  3. Step 3: Cross multiply
    8,339,664.64x = 12,510,430.36 × 2,658,570.88
  4. Step 4: Simplify right side
    8,339,664.64x = 33,259,865,851,363.91
  5. Step 5: Solve for x
    x = 33,259,865,851,363.91/8,339,664.64
  6. Step 6: Final answer
    x = 3,988,153.88

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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.