Home / 5,185,706.64-7,778,559.94-1,399,189.50

Finding the Fourth Proportional to 5,185,706.64, 7,778,559.94 and 1,399,189.50

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Solution

The fourth proportional to 5,185,706.64, 7,778,559.94 and 1,399,189.50 is: 2,098,784.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185,706.64 : 7,778,559.94 = 1,399,189.50 : x
  2. Step 2: Convert to fraction form
    5,185,706.64/7,778,559.94 = 1,399,189.50/x
  3. Step 3: Cross multiply
    5,185,706.64x = 7,778,559.94 × 1,399,189.50
  4. Step 4: Simplify right side
    5,185,706.64x = 10,883,679,393,168.63
  5. Step 5: Solve for x
    x = 10,883,679,393,168.63/5,185,706.64
  6. Step 6: Final answer
    x = 2,098,784.24

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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.