Home / 12,445,546.80-18,668,320.20-2,989,930.80

Finding the Fourth Proportional to 12,445,546.80, 18,668,320.20 and 2,989,930.80

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Solution

The fourth proportional to 12,445,546.80, 18,668,320.20 and 2,989,930.80 is: 4,484,896.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445,546.80 : 18,668,320.20 = 2,989,930.80 : x
  2. Step 2: Convert to fraction form
    12,445,546.80/18,668,320.20 = 2,989,930.80/x
  3. Step 3: Cross multiply
    12,445,546.80x = 18,668,320.20 × 2,989,930.80
  4. Step 4: Simplify right side
    12,445,546.80x = 55,816,985,550,242.16
  5. Step 5: Solve for x
    x = 55,816,985,550,242.16/12,445,546.80
  6. Step 6: Final answer
    x = 4,484,896.20

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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.