Home / 12,482,743.40-18,711,212.70-6,790,941.80

Finding the Fourth Proportional to 12,482,743.40, 18,711,212.70 and 6,790,941.80

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Solution

The fourth proportional to 12,482,743.40, 18,711,212.70 and 6,790,941.80 is: 10,179,393.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482,743.40 : 18,711,212.70 = 6,790,941.80 : x
  2. Step 2: Convert to fraction form
    12,482,743.40/18,711,212.70 = 6,790,941.80/x
  3. Step 3: Cross multiply
    12,482,743.40x = 18,711,212.70 × 6,790,941.80
  4. Step 4: Simplify right side
    12,482,743.40x = 127,066,756,453,120.84
  5. Step 5: Solve for x
    x = 127,066,756,453,120.84/12,482,743.40
  6. Step 6: Final answer
    x = 10,179,393.45

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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.