Home / 4,678,991.70-7,018,487.55-3,137,812.80

Finding the Fourth Proportional to 4,678,991.70, 7,018,487.55 and 3,137,812.80

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Solution

The fourth proportional to 4,678,991.70, 7,018,487.55 and 3,137,812.80 is: 4,706,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678,991.70 : 7,018,487.55 = 3,137,812.80 : x
  2. Step 2: Convert to fraction form
    4,678,991.70/7,018,487.55 = 3,137,812.80/x
  3. Step 3: Cross multiply
    4,678,991.70x = 7,018,487.55 × 3,137,812.80
  4. Step 4: Simplify right side
    4,678,991.70x = 22,022,700,071,030.64
  5. Step 5: Solve for x
    x = 22,022,700,071,030.64/4,678,991.70
  6. Step 6: Final answer
    x = 4,706,719.20

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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.