Finding the Fourth Proportional to 137,069,149.36, 189,153,661.44 and 78,331,141.84
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Solution
The fourth proportional to 137,069,149.36, 189,153,661.44 and 78,331,141.84 is: 108,095,967.28
Step by Step Solution
- Step 1: Write the proportion equation
137,069,149.36 : 189,153,661.44 = 78,331,141.84 : x - Step 2: Convert to fraction form
137,069,149.36/189,153,661.44 = 78,331,141.84/x - Step 3: Cross multiply
137,069,149.36x = 189,153,661.44 × 78,331,141.84 - Step 4: Simplify right side
137,069,149.36x = 14,816,622,283,811,980 - Step 5: Solve for x
x = 14,816,622,283,811,980/137,069,149.36 - Step 6: Final answer
x = 108,095,967.28
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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.