Finding the Fourth Proportional to 1,304,511,874.12, 1,954,298,865.30 and 771,126,424.12
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Solution
The fourth proportional to 1,304,511,874.12, 1,954,298,865.30 and 771,126,424.12 is: 1,155,230,186.52
Step by Step Solution
- Step 1: Write the proportion equation
1,304,511,874.12 : 1,954,298,865.30 = 771,126,424.12 : x - Step 2: Convert to fraction form
1,304,511,874.12/1,954,298,865.30 = 771,126,424.12/x - Step 3: Cross multiply
1,304,511,874.12x = 1,954,298,865.30 × 771,126,424.12 - Step 4: Simplify right side
1,304,511,874.12x = 1,507,011,495,660,562,432 - Step 5: Solve for x
x = 1,507,011,495,660,562,432/1,304,511,874.12 - Step 6: Final answer
x = 1,155,230,186.52
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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.