Finding the Fourth Proportional to 288,971,883.36, 398,781,471.78 and 165,215,152.08
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Solution
The fourth proportional to 288,971,883.36, 398,781,471.78 and 165,215,152.08 is: 227,997,065.81
Step by Step Solution
- Step 1: Write the proportion equation
288,971,883.36 : 398,781,471.78 = 165,215,152.08 : x - Step 2: Convert to fraction form
288,971,883.36/398,781,471.78 = 165,215,152.08/x - Step 3: Cross multiply
288,971,883.36x = 398,781,471.78 × 165,215,152.08 - Step 4: Simplify right side
288,971,883.36x = 65,884,741,506,818,928 - Step 5: Solve for x
x = 65,884,741,506,818,928/288,971,883.36 - Step 6: Final answer
x = 227,997,065.81
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.