Home / 5,212,939.45-7,820,711.28-3,678,929.02

Finding the Fourth Proportional to 5,212,939.45, 7,820,711.28 and 3,678,929.02

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Solution

The fourth proportional to 5,212,939.45, 7,820,711.28 and 3,678,929.02 is: 5,519,312.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212,939.45 : 7,820,711.28 = 3,678,929.02 : x
  2. Step 2: Convert to fraction form
    5,212,939.45/7,820,711.28 = 3,678,929.02/x
  3. Step 3: Cross multiply
    5,212,939.45x = 7,820,711.28 × 3,678,929.02
  4. Step 4: Simplify right side
    5,212,939.45x = 28,771,841,685,033.35
  5. Step 5: Solve for x
    x = 28,771,841,685,033.35/5,212,939.45
  6. Step 6: Final answer
    x = 5,519,312.46

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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.