Home / 28,079,368.64-42,121,623.36-7,884,474.56

Finding the Fourth Proportional to 28,079,368.64, 42,121,623.36 and 7,884,474.56

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Solution

The fourth proportional to 28,079,368.64, 42,121,623.36 and 7,884,474.56 is: 11,827,433.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,079,368.64 : 42,121,623.36 = 7,884,474.56 : x
  2. Step 2: Convert to fraction form
    28,079,368.64/42,121,623.36 = 7,884,474.56/x
  3. Step 3: Cross multiply
    28,079,368.64x = 42,121,623.36 × 7,884,474.56
  4. Step 4: Simplify right side
    28,079,368.64x = 332,106,867,807,821.69
  5. Step 5: Solve for x
    x = 332,106,867,807,821.69/28,079,368.64
  6. Step 6: Final answer
    x = 11,827,433.59

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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.