Home / 30,211,505.70-45,323,163.45-12,012,603.90

Finding the Fourth Proportional to 30,211,505.70, 45,323,163.45 and 12,012,603.90

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Solution

The fourth proportional to 30,211,505.70, 45,323,163.45 and 12,012,603.90 is: 18,021,253.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,211,505.70 : 45,323,163.45 = 12,012,603.90 : x
  2. Step 2: Convert to fraction form
    30,211,505.70/45,323,163.45 = 12,012,603.90/x
  3. Step 3: Cross multiply
    30,211,505.70x = 45,323,163.45 × 12,012,603.90
  4. Step 4: Simplify right side
    30,211,505.70x = 544,449,210,019,807.50
  5. Step 5: Solve for x
    x = 544,449,210,019,807.50/30,211,505.70
  6. Step 6: Final answer
    x = 18,021,253.74

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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.