Home / 28,079,276.64-42,121,485.36-7,884,382.56

Finding the Fourth Proportional to 28,079,276.64, 42,121,485.36 and 7,884,382.56

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Solution

The fourth proportional to 28,079,276.64, 42,121,485.36 and 7,884,382.56 is: 11,827,295.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,079,276.64 : 42,121,485.36 = 7,884,382.56 : x
  2. Step 2: Convert to fraction form
    28,079,276.64/42,121,485.36 = 7,884,382.56/x
  3. Step 3: Cross multiply
    28,079,276.64x = 42,121,485.36 × 7,884,382.56
  4. Step 4: Simplify right side
    28,079,276.64x = 332,101,904,573,679.31
  5. Step 5: Solve for x
    x = 332,101,904,573,679.31/28,079,276.64
  6. Step 6: Final answer
    x = 11,827,295.58

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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.