Home / 30,151,078.77-45,225,121.42-9,681,800.43

Finding the Fourth Proportional to 30,151,078.77, 45,225,121.42 and 9,681,800.43

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Solution

The fourth proportional to 30,151,078.77, 45,225,121.42 and 9,681,800.43 is: 14,522,220.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,151,078.77 : 45,225,121.42 = 9,681,800.43 : x
  2. Step 2: Convert to fraction form
    30,151,078.77/45,225,121.42 = 9,681,800.43/x
  3. Step 3: Cross multiply
    30,151,078.77x = 45,225,121.42 × 9,681,800.43
  4. Step 4: Simplify right side
    30,151,078.77x = 437,860,600,138,194.50
  5. Step 5: Solve for x
    x = 437,860,600,138,194.50/30,151,078.77
  6. Step 6: Final answer
    x = 14,522,220.03

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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.