Home / 38,434,856.40-53,041,291.56-21,031,935.12

Finding the Fourth Proportional to 38,434,856.40, 53,041,291.56 and 21,031,935.12

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Solution

The fourth proportional to 38,434,856.40, 53,041,291.56 and 21,031,935.12 is: 29,024,721.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,434,856.40 : 53,041,291.56 = 21,031,935.12 : x
  2. Step 2: Convert to fraction form
    38,434,856.40/53,041,291.56 = 21,031,935.12/x
  3. Step 3: Cross multiply
    38,434,856.40x = 53,041,291.56 × 21,031,935.12
  4. Step 4: Simplify right side
    38,434,856.40x = 1,115,561,002,770,923.75
  5. Step 5: Solve for x
    x = 1,115,561,002,770,923.75/38,434,856.40
  6. Step 6: Final answer
    x = 29,024,721.50

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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.