Home / 38,128,342.24-52,617,175.88-20,724,643.36

Finding the Fourth Proportional to 38,128,342.24, 52,617,175.88 and 20,724,643.36

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Solution

The fourth proportional to 38,128,342.24, 52,617,175.88 and 20,724,643.36 is: 28,600,042.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,128,342.24 : 52,617,175.88 = 20,724,643.36 : x
  2. Step 2: Convert to fraction form
    38,128,342.24/52,617,175.88 = 20,724,643.36/x
  3. Step 3: Cross multiply
    38,128,342.24x = 52,617,175.88 × 20,724,643.36
  4. Step 4: Simplify right side
    38,128,342.24x = 1,090,472,204,723,394.12
  5. Step 5: Solve for x
    x = 1,090,472,204,723,394.12/38,128,342.24
  6. Step 6: Final answer
    x = 28,600,042.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.