Finding the Fourth Proportional to 1,010,405,405.10, 1,515,608,107.65 and 885,441,974.70
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Solution
The fourth proportional to 1,010,405,405.10, 1,515,608,107.65 and 885,441,974.70 is: 1,328,162,962.05
Step by Step Solution
- Step 1: Write the proportion equation
1,010,405,405.10 : 1,515,608,107.65 = 885,441,974.70 : x - Step 2: Convert to fraction form
1,010,405,405.10/1,515,608,107.65 = 885,441,974.70/x - Step 3: Cross multiply
1,010,405,405.10x = 1,515,608,107.65 × 885,441,974.70 - Step 4: Simplify right side
1,010,405,405.10x = 1,341,983,035,708,946,432 - Step 5: Solve for x
x = 1,341,983,035,708,946,432/1,010,405,405.10 - Step 6: Final answer
x = 1,328,162,962.05
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1.5x scale
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.