Home / 38,889,407.34-53,667,945.36-21,486,152.88

Finding the Fourth Proportional to 38,889,407.34, 53,667,945.36 and 21,486,152.88

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Solution

The fourth proportional to 38,889,407.34, 53,667,945.36 and 21,486,152.88 is: 29,651,202.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,889,407.34 : 53,667,945.36 = 21,486,152.88 : x
  2. Step 2: Convert to fraction form
    38,889,407.34/53,667,945.36 = 21,486,152.88/x
  3. Step 3: Cross multiply
    38,889,407.34x = 53,667,945.36 × 21,486,152.88
  4. Step 4: Simplify right side
    38,889,407.34x = 1,153,117,678,760,446.50
  5. Step 5: Solve for x
    x = 1,153,117,678,760,446.50/38,889,407.34
  6. Step 6: Final answer
    x = 29,651,202.16

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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.