Home / 12,313,686.80-18,470,530.20-5,122,830.80

Finding the Fourth Proportional to 12,313,686.80, 18,470,530.20 and 5,122,830.80

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Solution

The fourth proportional to 12,313,686.80, 18,470,530.20 and 5,122,830.80 is: 7,684,246.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,313,686.80 : 18,470,530.20 = 5,122,830.80 : x
  2. Step 2: Convert to fraction form
    12,313,686.80/18,470,530.20 = 5,122,830.80/x
  3. Step 3: Cross multiply
    12,313,686.80x = 18,470,530.20 × 5,122,830.80
  4. Step 4: Simplify right side
    12,313,686.80x = 94,621,401,000,890.16
  5. Step 5: Solve for x
    x = 94,621,401,000,890.16/12,313,686.80
  6. Step 6: Final answer
    x = 7,684,246.20

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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.