Finding the Fourth Proportional to 288,584,774.12, 398,236,319.08 and 156,422,933.08
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Solution
The fourth proportional to 288,584,774.12, 398,236,319.08 and 156,422,933.08 is: 215,857,864.57
Step by Step Solution
- Step 1: Write the proportion equation
288,584,774.12 : 398,236,319.08 = 156,422,933.08 : x - Step 2: Convert to fraction form
288,584,774.12/398,236,319.08 = 156,422,933.08/x - Step 3: Cross multiply
288,584,774.12x = 398,236,319.08 × 156,422,933.08 - Step 4: Simplify right side
288,584,774.12x = 62,293,293,088,089,712 - Step 5: Solve for x
x = 62,293,293,088,089,712/288,584,774.12 - Step 6: Final answer
x = 215,857,864.57
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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.