Home / 72,242,672.50-99,694,888.05-43,269,296.50

Finding the Fourth Proportional to 72,242,672.50, 99,694,888.05 and 43,269,296.50

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Solution

The fourth proportional to 72,242,672.50, 99,694,888.05 and 43,269,296.50 is: 59,711,629.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,242,672.50 : 99,694,888.05 = 43,269,296.50 : x
  2. Step 2: Convert to fraction form
    72,242,672.50/99,694,888.05 = 43,269,296.50/x
  3. Step 3: Cross multiply
    72,242,672.50x = 99,694,888.05 × 43,269,296.50
  4. Step 4: Simplify right side
    72,242,672.50x = 4,313,727,670,569,756.50
  5. Step 5: Solve for x
    x = 4,313,727,670,569,756.50/72,242,672.50
  6. Step 6: Final answer
    x = 59,711,629.17

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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.