Home / 85,262,662.20-127,865,999.70-31,402,975.80

Finding the Fourth Proportional to 85,262,662.20, 127,865,999.70 and 31,402,975.80

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Solution

The fourth proportional to 85,262,662.20, 127,865,999.70 and 31,402,975.80 is: 47,094,153.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,262,662.20 : 127,865,999.70 = 31,402,975.80 : x
  2. Step 2: Convert to fraction form
    85,262,662.20/127,865,999.70 = 31,402,975.80/x
  3. Step 3: Cross multiply
    85,262,662.20x = 127,865,999.70 × 31,402,975.80
  4. Step 4: Simplify right side
    85,262,662.20x = 4,015,372,894,221,907.50
  5. Step 5: Solve for x
    x = 4,015,372,894,221,907.50/85,262,662.20
  6. Step 6: Final answer
    x = 47,094,153.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.