Home / 28,132,383.60-42,194,428.20-7,939,666.80

Finding the Fourth Proportional to 28,132,383.60, 42,194,428.20 and 7,939,666.80

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Solution

The fourth proportional to 28,132,383.60, 42,194,428.20 and 7,939,666.80 is: 11,908,329.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,132,383.60 : 42,194,428.20 = 7,939,666.80 : x
  2. Step 2: Convert to fraction form
    28,132,383.60/42,194,428.20 = 7,939,666.80/x
  3. Step 3: Cross multiply
    28,132,383.60x = 42,194,428.20 × 7,939,666.80
  4. Step 4: Simplify right side
    28,132,383.60x = 335,009,700,724,523.75
  5. Step 5: Solve for x
    x = 335,009,700,724,523.75/28,132,383.60
  6. Step 6: Final answer
    x = 11,908,329.76

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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.