Home / 8,172,012.80-12,239,356.80-4,812,780.80

Finding the Fourth Proportional to 8,172,012.80, 12,239,356.80 and 4,812,780.80

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Solution

The fourth proportional to 8,172,012.80, 12,239,356.80 and 4,812,780.80 is: 7,208,180.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172,012.80 : 12,239,356.80 = 4,812,780.80 : x
  2. Step 2: Convert to fraction form
    8,172,012.80/12,239,356.80 = 4,812,780.80/x
  3. Step 3: Cross multiply
    8,172,012.80x = 12,239,356.80 × 4,812,780.80
  4. Step 4: Simplify right side
    8,172,012.80x = 58,905,341,411,389.44
  5. Step 5: Solve for x
    x = 58,905,341,411,389.44/8,172,012.80
  6. Step 6: Final answer
    x = 7,208,180.27

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1.5x scale

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.