Home / 72,425,194.32-99,945,382.49-39,830,146.32

Finding the Fourth Proportional to 72,425,194.32, 99,945,382.49 and 39,830,146.32

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Solution

The fourth proportional to 72,425,194.32, 99,945,382.49 and 39,830,146.32 is: 54,964,839.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,425,194.32 : 99,945,382.49 = 39,830,146.32 : x
  2. Step 2: Convert to fraction form
    72,425,194.32/99,945,382.49 = 39,830,146.32/x
  3. Step 3: Cross multiply
    72,425,194.32x = 99,945,382.49 × 39,830,146.32
  4. Step 4: Simplify right side
    72,425,194.32x = 3,980,839,208,385,915
  5. Step 5: Solve for x
    x = 3,980,839,208,385,915/72,425,194.32
  6. Step 6: Final answer
    x = 54,964,839.87

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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.