Finding the Fourth Proportional to 81,165,862.72, 121,747,088.34 and 19,755,364.02
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Solution
The fourth proportional to 81,165,862.72, 121,747,088.34 and 19,755,364.02 is: 29,632,630.86
Step by Step Solution
- Step 1: Write the proportion equation
81,165,862.72 : 121,747,088.34 = 19,755,364.02 : x - Step 2: Convert to fraction form
81,165,862.72/121,747,088.34 = 19,755,364.02/x - Step 3: Cross multiply
81,165,862.72x = 121,747,088.34 × 19,755,364.02 - Step 4: Simplify right side
81,165,862.72x = 2,405,158,048,075,246 - Step 5: Solve for x
x = 2,405,158,048,075,246/81,165,862.72 - Step 6: Final answer
x = 29,632,630.86
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.