Finding the Fourth Proportional to 159,836,417.42, 220,573,445.10 and 86,497,559.42
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Solution
The fourth proportional to 159,836,417.42, 220,573,445.10 and 86,497,559.42 is: 119,366,193.15
Step by Step Solution
- Step 1: Write the proportion equation
159,836,417.42 : 220,573,445.10 = 86,497,559.42 : x - Step 2: Convert to fraction form
159,836,417.42/220,573,445.10 = 86,497,559.42/x - Step 3: Cross multiply
159,836,417.42x = 220,573,445.10 × 86,497,559.42 - Step 4: Simplify right side
159,836,417.42x = 19,079,064,674,011,356 - Step 5: Solve for x
x = 19,079,064,674,011,356/159,836,417.42 - Step 6: Final answer
x = 119,366,193.15
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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.