Finding the Fourth Proportional to 288,397,579.14, 397,986,459.35 and 156,237,630.23
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Solution
The fourth proportional to 288,397,579.14, 397,986,459.35 and 156,237,630.23 is: 215,606,737.96
Step by Step Solution
- Step 1: Write the proportion equation
288,397,579.14 : 397,986,459.35 = 156,237,630.23 : x - Step 2: Convert to fraction form
288,397,579.14/397,986,459.35 = 156,237,630.23/x - Step 3: Cross multiply
288,397,579.14x = 397,986,459.35 × 156,237,630.23 - Step 4: Simplify right side
288,397,579.14x = 62,180,461,272,686,000 - Step 5: Solve for x
x = 62,180,461,272,686,000/288,397,579.14 - Step 6: Final answer
x = 215,606,737.96
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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.