Home / 12,482,739.40-18,711,206.70-6,790,937.80

Finding the Fourth Proportional to 12,482,739.40, 18,711,206.70 and 6,790,937.80

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Solution

The fourth proportional to 12,482,739.40, 18,711,206.70 and 6,790,937.80 is: 10,179,387.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482,739.40 : 18,711,206.70 = 6,790,937.80 : x
  2. Step 2: Convert to fraction form
    12,482,739.40/18,711,206.70 = 6,790,937.80/x
  3. Step 3: Cross multiply
    12,482,739.40x = 18,711,206.70 × 6,790,937.80
  4. Step 4: Simplify right side
    12,482,739.40x = 127,066,640,862,643.25
  5. Step 5: Solve for x
    x = 127,066,640,862,643.25/12,482,739.40
  6. Step 6: Final answer
    x = 10,179,387.46

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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.