Finding the Fourth Proportional to 83,979,111.11, 115,940,886.08 and 74,660,943.68
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Solution
The fourth proportional to 83,979,111.11, 115,940,886.08 and 74,660,943.68 is: 103,076,298.99
Step by Step Solution
- Step 1: Write the proportion equation
83,979,111.11 : 115,940,886.08 = 74,660,943.68 : x - Step 2: Convert to fraction form
83,979,111.11/115,940,886.08 = 74,660,943.68/x - Step 3: Cross multiply
83,979,111.11x = 115,940,886.08 × 74,660,943.68 - Step 4: Simplify right side
83,979,111.11x = 8,656,255,965,744,724 - Step 5: Solve for x
x = 8,656,255,965,744,724/83,979,111.11 - Step 6: Final answer
x = 103,076,298.99
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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.