Home / 28,030,190.40-42,045,285.60-12,884,121.90

Finding the Fourth Proportional to 28,030,190.40, 42,045,285.60 and 12,884,121.90

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Solution

The fourth proportional to 28,030,190.40, 42,045,285.60 and 12,884,121.90 is: 19,326,182.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,030,190.40 : 42,045,285.60 = 12,884,121.90 : x
  2. Step 2: Convert to fraction form
    28,030,190.40/42,045,285.60 = 12,884,121.90/x
  3. Step 3: Cross multiply
    28,030,190.40x = 42,045,285.60 × 12,884,121.90
  4. Step 4: Simplify right side
    28,030,190.40x = 541,716,584,990,714.69
  5. Step 5: Solve for x
    x = 541,716,584,990,714.69/28,030,190.40
  6. Step 6: Final answer
    x = 19,326,182.85

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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.