Home / 28,110,247.80-42,072,059.70-20,412,007.80

Finding the Fourth Proportional to 28,110,247.80, 42,072,059.70 and 20,412,007.80

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Solution

The fourth proportional to 28,110,247.80, 42,072,059.70 and 20,412,007.80 is: 30,550,254.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,110,247.80 : 42,072,059.70 = 20,412,007.80 : x
  2. Step 2: Convert to fraction form
    28,110,247.80/42,072,059.70 = 20,412,007.80/x
  3. Step 3: Cross multiply
    28,110,247.80x = 42,072,059.70 × 20,412,007.80
  4. Step 4: Simplify right side
    28,110,247.80x = 858,775,210,758,465.75
  5. Step 5: Solve for x
    x = 858,775,210,758,465.75/28,110,247.80
  6. Step 6: Final answer
    x = 30,550,254.02

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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.