Home / 12,207,997.20-18,314,911.80-3,688,417.20

Finding the Fourth Proportional to 12,207,997.20, 18,314,911.80 and 3,688,417.20

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Solution

The fourth proportional to 12,207,997.20, 18,314,911.80 and 3,688,417.20 is: 5,533,506.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207,997.20 : 18,314,911.80 = 3,688,417.20 : x
  2. Step 2: Convert to fraction form
    12,207,997.20/18,314,911.80 = 3,688,417.20/x
  3. Step 3: Cross multiply
    12,207,997.20x = 18,314,911.80 × 3,688,417.20
  4. Step 4: Simplify right side
    12,207,997.20x = 67,553,035,699,602.97
  5. Step 5: Solve for x
    x = 67,553,035,699,602.97/12,207,997.20
  6. Step 6: Final answer
    x = 5,533,506.81

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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.