Home / 38,536,724.16-53,181,409.68-21,132,031.20

Finding the Fourth Proportional to 38,536,724.16, 53,181,409.68 and 21,132,031.20

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Solution

The fourth proportional to 38,536,724.16, 53,181,409.68 and 21,132,031.20 is: 29,162,603.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,536,724.16 : 53,181,409.68 = 21,132,031.20 : x
  2. Step 2: Convert to fraction form
    38,536,724.16/53,181,409.68 = 21,132,031.20/x
  3. Step 3: Cross multiply
    38,536,724.16x = 53,181,409.68 × 21,132,031.20
  4. Step 4: Simplify right side
    38,536,724.16x = 1,123,831,208,617,742
  5. Step 5: Solve for x
    x = 1,123,831,208,617,742/38,536,724.16
  6. Step 6: Final answer
    x = 29,162,603.55

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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.