Finding the Fourth Proportional to 142,314,149.68, 196,393,694.52 and 77,124,053.68
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Solution
The fourth proportional to 142,314,149.68, 196,393,694.52 and 77,124,053.68 is: 106,431,285.10
Step by Step Solution
- Step 1: Write the proportion equation
142,314,149.68 : 196,393,694.52 = 77,124,053.68 : x - Step 2: Convert to fraction form
142,314,149.68/196,393,694.52 = 77,124,053.68/x - Step 3: Cross multiply
142,314,149.68x = 196,393,694.52 × 77,124,053.68 - Step 4: Simplify right side
142,314,149.68x = 15,146,677,838,574,004 - Step 5: Solve for x
x = 15,146,677,838,574,004/142,314,149.68 - Step 6: Final answer
x = 106,431,285.10
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.