Finding the Fourth Proportional to 81,025,916.84, 121,538,875.26 and 27,173,073.32
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Solution
The fourth proportional to 81,025,916.84, 121,538,875.26 and 27,173,073.32 is: 40,759,609.98
Step by Step Solution
- Step 1: Write the proportion equation
81,025,916.84 : 121,538,875.26 = 27,173,073.32 : x - Step 2: Convert to fraction form
81,025,916.84/121,538,875.26 = 27,173,073.32/x - Step 3: Cross multiply
81,025,916.84x = 121,538,875.26 × 27,173,073.32 - Step 4: Simplify right side
81,025,916.84x = 3,302,584,768,670,314 - Step 5: Solve for x
x = 3,302,584,768,670,314/81,025,916.84 - Step 6: Final answer
x = 40,759,609.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.