Home / 38,978,549.28-53,789,026.32-21,574,928.16

Finding the Fourth Proportional to 38,978,549.28, 53,789,026.32 and 21,574,928.16

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Solution

The fourth proportional to 38,978,549.28, 53,789,026.32 and 21,574,928.16 is: 29,772,641.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,978,549.28 : 53,789,026.32 = 21,574,928.16 : x
  2. Step 2: Convert to fraction form
    38,978,549.28/53,789,026.32 = 21,574,928.16/x
  3. Step 3: Cross multiply
    38,978,549.28x = 53,789,026.32 × 21,574,928.16
  4. Step 4: Simplify right side
    38,978,549.28x = 1,160,494,378,650,349.25
  5. Step 5: Solve for x
    x = 1,160,494,378,650,349.25/38,978,549.28
  6. Step 6: Final answer
    x = 29,772,641.62

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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.