Home / 5,215,035.60-7,812,055.80-3,619,400.40

Finding the Fourth Proportional to 5,215,035.60, 7,812,055.80 and 3,619,400.40

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Solution

The fourth proportional to 5,215,035.60, 7,812,055.80 and 3,619,400.40 is: 5,421,814.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215,035.60 : 7,812,055.80 = 3,619,400.40 : x
  2. Step 2: Convert to fraction form
    5,215,035.60/7,812,055.80 = 3,619,400.40/x
  3. Step 3: Cross multiply
    5,215,035.60x = 7,812,055.80 × 3,619,400.40
  4. Step 4: Simplify right side
    5,215,035.60x = 28,274,957,887,342.32
  5. Step 5: Solve for x
    x = 28,274,957,887,342.32/5,215,035.60
  6. Step 6: Final answer
    x = 5,421,814.93

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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.