Finding the Fourth Proportional to 142,545,824.09, 196,713,237.17 and 77,355,728.09
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Solution
The fourth proportional to 142,545,824.09, 196,713,237.17 and 77,355,728.09 is: 106,750,904.72
Step by Step Solution
- Step 1: Write the proportion equation
142,545,824.09 : 196,713,237.17 = 77,355,728.09 : x - Step 2: Convert to fraction form
142,545,824.09/196,713,237.17 = 77,355,728.09/x - Step 3: Cross multiply
142,545,824.09x = 196,713,237.17 × 77,355,728.09 - Step 4: Simplify right side
142,545,824.09x = 15,216,895,685,839,422 - Step 5: Solve for x
x = 15,216,895,685,839,422/142,545,824.09 - Step 6: Final answer
x = 106,750,904.72
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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.