Finding the Fourth Proportional to 69,921,950.10, 96,461,680.14 and 66,680,160
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Solution
The fourth proportional to 69,921,950.10, 96,461,680.14 and 66,680,160 is: 91,989,429.02
Step by Step Solution
- Step 1: Write the proportion equation
69,921,950.10 : 96,461,680.14 = 66,680,160 : x - Step 2: Convert to fraction form
69,921,950.10/96,461,680.14 = 66,680,160/x - Step 3: Cross multiply
69,921,950.10x = 96,461,680.14 × 66,680,160 - Step 4: Simplify right side
69,921,950.10x = 6,432,080,265,604,022 - Step 5: Solve for x
x = 6,432,080,265,604,022/69,921,950.10 - Step 6: Final answer
x = 91,989,429.02
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.