Home / 72,409,984.70-99,925,076.48-39,370,233.80

Finding the Fourth Proportional to 72,409,984.70, 99,925,076.48 and 39,370,233.80

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Solution

The fourth proportional to 72,409,984.70, 99,925,076.48 and 39,370,233.80 is: 54,330,540.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,409,984.70 : 99,925,076.48 = 39,370,233.80 : x
  2. Step 2: Convert to fraction form
    72,409,984.70/99,925,076.48 = 39,370,233.80/x
  3. Step 3: Cross multiply
    72,409,984.70x = 99,925,076.48 × 39,370,233.80
  4. Step 4: Simplify right side
    72,409,984.70x = 3,934,073,623,553,442.50
  5. Step 5: Solve for x
    x = 3,934,073,623,553,442.50/72,409,984.70
  6. Step 6: Final answer
    x = 54,330,540.74

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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.