Finding the Fourth Proportional to 288,584,810.14, 398,236,368.63 and 156,422,969.02
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Solution
The fourth proportional to 288,584,810.14, 398,236,368.63 and 156,422,969.02 is: 215,857,914.08
Step by Step Solution
- Step 1: Write the proportion equation
288,584,810.14 : 398,236,368.63 = 156,422,969.02 : x - Step 2: Convert to fraction form
288,584,810.14/398,236,368.63 = 156,422,969.02/x - Step 3: Cross multiply
288,584,810.14x = 398,236,368.63 × 156,422,969.02 - Step 4: Simplify right side
288,584,810.14x = 62,293,315,152,847,792 - Step 5: Solve for x
x = 62,293,315,152,847,792/288,584,810.14 - Step 6: Final answer
x = 215,857,914.08
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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.