Home / 28,331,840.90-42,493,007.47-7,863,640.01

Finding the Fourth Proportional to 28,331,840.90, 42,493,007.47 and 7,863,640.01

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Solution

The fourth proportional to 28,331,840.90, 42,493,007.47 and 7,863,640.01 is: 11,794,140.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,331,840.90 : 42,493,007.47 = 7,863,640.01 : x
  2. Step 2: Convert to fraction form
    28,331,840.90/42,493,007.47 = 7,863,640.01/x
  3. Step 3: Cross multiply
    28,331,840.90x = 42,493,007.47 × 7,863,640.01
  4. Step 4: Simplify right side
    28,331,840.90x = 334,149,713,686,320.88
  5. Step 5: Solve for x
    x = 334,149,713,686,320.88/28,331,840.90
  6. Step 6: Final answer
    x = 11,794,140.55

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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.