Home / 30,151,079.06-45,225,121.84-9,681,800.72

Finding the Fourth Proportional to 30,151,079.06, 45,225,121.84 and 9,681,800.72

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Solution

The fourth proportional to 30,151,079.06, 45,225,121.84 and 9,681,800.72 is: 14,522,220.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,151,079.06 : 45,225,121.84 = 9,681,800.72 : x
  2. Step 2: Convert to fraction form
    30,151,079.06/45,225,121.84 = 9,681,800.72/x
  3. Step 3: Cross multiply
    30,151,079.06x = 45,225,121.84 × 9,681,800.72
  4. Step 4: Simplify right side
    30,151,079.06x = 437,860,616,942,269.56
  5. Step 5: Solve for x
    x = 437,860,616,942,269.56/30,151,079.06
  6. Step 6: Final answer
    x = 14,522,220.45

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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.