Finding the Fourth Proportional to 137,240,976.99, 189,395,839.01 and 74,519,718.32
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Solution
The fourth proportional to 137,240,976.99, 189,395,839.01 and 74,519,718.32 is: 102,838,998.11
Step by Step Solution
- Step 1: Write the proportion equation
137,240,976.99 : 189,395,839.01 = 74,519,718.32 : x - Step 2: Convert to fraction form
137,240,976.99/189,395,839.01 = 74,519,718.32/x - Step 3: Cross multiply
137,240,976.99x = 189,395,839.01 × 74,519,718.32 - Step 4: Simplify right side
137,240,976.99x = 14,113,724,572,685,690 - Step 5: Solve for x
x = 14,113,724,572,685,690/137,240,976.99 - Step 6: Final answer
x = 102,838,998.11
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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.