Home / 28,386,940.80-42,579,796.41-7,916,114.16

Finding the Fourth Proportional to 28,386,940.80, 42,579,796.41 and 7,916,114.16

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Solution

The fourth proportional to 28,386,940.80, 42,579,796.41 and 7,916,114.16 is: 11,873,999.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,386,940.80 : 42,579,796.41 = 7,916,114.16 : x
  2. Step 2: Convert to fraction form
    28,386,940.80/42,579,796.41 = 7,916,114.16/x
  3. Step 3: Cross multiply
    28,386,940.80x = 42,579,796.41 × 7,916,114.16
  4. Step 4: Simplify right side
    28,386,940.80x = 337,066,529,291,118.12
  5. Step 5: Solve for x
    x = 337,066,529,291,118.12/28,386,940.80
  6. Step 6: Final answer
    x = 11,873,999.80

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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.