Home / 28,066,866.20-42,100,299.30-18,996,939.80

Finding the Fourth Proportional to 28,066,866.20, 42,100,299.30 and 18,996,939.80

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Solution

The fourth proportional to 28,066,866.20, 42,100,299.30 and 18,996,939.80 is: 28,495,409.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066,866.20 : 42,100,299.30 = 18,996,939.80 : x
  2. Step 2: Convert to fraction form
    28,066,866.20/42,100,299.30 = 18,996,939.80/x
  3. Step 3: Cross multiply
    28,066,866.20x = 42,100,299.30 × 18,996,939.80
  4. Step 4: Simplify right side
    28,066,866.20x = 799,776,851,364,082.12
  5. Step 5: Solve for x
    x = 799,776,851,364,082.12/28,066,866.20
  6. Step 6: Final answer
    x = 28,495,409.70

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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.