Home / 78,267,464.46-117,400,444.74-47,570,513.76

Finding the Fourth Proportional to 78,267,464.46, 117,400,444.74 and 47,570,513.76

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Solution

The fourth proportional to 78,267,464.46, 117,400,444.74 and 47,570,513.76 is: 71,355,313.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,267,464.46 : 117,400,444.74 = 47,570,513.76 : x
  2. Step 2: Convert to fraction form
    78,267,464.46/117,400,444.74 = 47,570,513.76/x
  3. Step 3: Cross multiply
    78,267,464.46x = 117,400,444.74 × 47,570,513.76
  4. Step 4: Simplify right side
    78,267,464.46x = 5,584,799,471,934,289
  5. Step 5: Solve for x
    x = 5,584,799,471,934,289/78,267,464.46
  6. Step 6: Final answer
    x = 71,355,313.61

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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.