Finding the Fourth Proportional to 288,584,808.14, 398,236,365.87 and 156,422,967.02
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Solution
The fourth proportional to 288,584,808.14, 398,236,365.87 and 156,422,967.02 is: 215,857,911.32
Step by Step Solution
- Step 1: Write the proportion equation
288,584,808.14 : 398,236,365.87 = 156,422,967.02 : x - Step 2: Convert to fraction form
288,584,808.14/398,236,365.87 = 156,422,967.02/x - Step 3: Cross multiply
288,584,808.14x = 398,236,365.87 × 156,422,967.02 - Step 4: Simplify right side
288,584,808.14x = 62,293,313,924,647,672 - Step 5: Solve for x
x = 62,293,313,924,647,672/288,584,808.14 - Step 6: Final answer
x = 215,857,911.32
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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.