Home / 38,372,929.20-52,955,335.44-20,970,007.92

Finding the Fourth Proportional to 38,372,929.20, 52,955,335.44 and 20,970,007.92

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Solution

The fourth proportional to 38,372,929.20, 52,955,335.44 and 20,970,007.92 is: 28,938,989.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,372,929.20 : 52,955,335.44 = 20,970,007.92 : x
  2. Step 2: Convert to fraction form
    38,372,929.20/52,955,335.44 = 20,970,007.92/x
  3. Step 3: Cross multiply
    38,372,929.20x = 52,955,335.44 × 20,970,007.92
  4. Step 4: Simplify right side
    38,372,929.20x = 1,110,473,803,583,056.75
  5. Step 5: Solve for x
    x = 1,110,473,803,583,056.75/38,372,929.20
  6. Step 6: Final answer
    x = 28,938,989.72

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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.