Home / 28,643,989.64-42,965,563.73-7,078,590.81

Finding the Fourth Proportional to 28,643,989.64, 42,965,563.73 and 7,078,590.81

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Solution

The fourth proportional to 28,643,989.64, 42,965,563.73 and 7,078,590.81 is: 10,617,782.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,643,989.64 : 42,965,563.73 = 7,078,590.81 : x
  2. Step 2: Convert to fraction form
    28,643,989.64/42,965,563.73 = 7,078,590.81/x
  3. Step 3: Cross multiply
    28,643,989.64x = 42,965,563.73 × 7,078,590.81
  4. Step 4: Simplify right side
    28,643,989.64x = 304,135,644,530,254.38
  5. Step 5: Solve for x
    x = 304,135,644,530,254.38/28,643,989.64
  6. Step 6: Final answer
    x = 10,617,782.24

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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.