Home / 5,210,479.16-7,190,690.40-2,887,365.12

Finding the Fourth Proportional to 5,210,479.16, 7,190,690.40 and 2,887,365.12

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Solution

The fourth proportional to 5,210,479.16, 7,190,690.40 and 2,887,365.12 is: 3,984,690.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210,479.16 : 7,190,690.40 = 2,887,365.12 : x
  2. Step 2: Convert to fraction form
    5,210,479.16/7,190,690.40 = 2,887,365.12/x
  3. Step 3: Cross multiply
    5,210,479.16x = 7,190,690.40 × 2,887,365.12
  4. Step 4: Simplify right side
    5,210,479.16x = 20,762,148,649,678.85
  5. Step 5: Solve for x
    x = 20,762,148,649,678.85/5,210,479.16
  6. Step 6: Final answer
    x = 3,984,690.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.