Home / 8,424,145.80-12,636,218.70-4,172,617.80

Finding the Fourth Proportional to 8,424,145.80, 12,636,218.70 and 4,172,617.80

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Solution

The fourth proportional to 8,424,145.80, 12,636,218.70 and 4,172,617.80 is: 6,258,926.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424,145.80 : 12,636,218.70 = 4,172,617.80 : x
  2. Step 2: Convert to fraction form
    8,424,145.80/12,636,218.70 = 4,172,617.80/x
  3. Step 3: Cross multiply
    8,424,145.80x = 12,636,218.70 × 4,172,617.80
  4. Step 4: Simplify right side
    8,424,145.80x = 52,726,111,072,312.85
  5. Step 5: Solve for x
    x = 52,726,111,072,312.85/8,424,145.80
  6. Step 6: Final answer
    x = 6,258,926.70

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Similar ratio
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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.