Home / 57,120,143.85-78,825,891.83-31,014,712.17

Finding the Fourth Proportional to 57,120,143.85, 78,825,891.83 and 31,014,712.17

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Solution

The fourth proportional to 57,120,143.85, 78,825,891.83 and 31,014,712.17 is: 42,800,353.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,120,143.85 : 78,825,891.83 = 31,014,712.17 : x
  2. Step 2: Convert to fraction form
    57,120,143.85/78,825,891.83 = 31,014,712.17/x
  3. Step 3: Cross multiply
    57,120,143.85x = 78,825,891.83 × 31,014,712.17
  4. Step 4: Simplify right side
    57,120,143.85x = 2,444,762,346,495,931
  5. Step 5: Solve for x
    x = 2,444,762,346,495,931/57,120,143.85
  6. Step 6: Final answer
    x = 42,800,353.46

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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.