Finding the Fourth Proportional to 288,632,643.18, 432,902,877.93 and 84,112,879.02
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Solution
The fourth proportional to 288,632,643.18, 432,902,877.93 and 84,112,879.02 is: 126,155,887.97
Step by Step Solution
- Step 1: Write the proportion equation
288,632,643.18 : 432,902,877.93 = 84,112,879.02 : x - Step 2: Convert to fraction form
288,632,643.18/432,902,877.93 = 84,112,879.02/x - Step 3: Cross multiply
288,632,643.18x = 432,902,877.93 × 84,112,879.02 - Step 4: Simplify right side
288,632,643.18x = 36,412,707,398,735,920 - Step 5: Solve for x
x = 36,412,707,398,735,920/288,632,643.18 - Step 6: Final answer
x = 126,155,887.97
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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.