Home / 5,474,121.80-8,210,405.10-1,687,987.40

Finding the Fourth Proportional to 5,474,121.80, 8,210,405.10 and 1,687,987.40

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Solution

The fourth proportional to 5,474,121.80, 8,210,405.10 and 1,687,987.40 is: 2,531,741.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,474,121.80 : 8,210,405.10 = 1,687,987.40 : x
  2. Step 2: Convert to fraction form
    5,474,121.80/8,210,405.10 = 1,687,987.40/x
  3. Step 3: Cross multiply
    5,474,121.80x = 8,210,405.10 × 1,687,987.40
  4. Step 4: Simplify right side
    5,474,121.80x = 13,859,060,357,695.74
  5. Step 5: Solve for x
    x = 13,859,060,357,695.74/5,474,121.80
  6. Step 6: Final answer
    x = 2,531,741.32

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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.