Finding the Fourth Proportional to 288,880,580.62, 398,655,973.95 and 156,721,577.14
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Solution
The fourth proportional to 288,880,580.62, 398,655,973.95 and 156,721,577.14 is: 216,276,195.65
Step by Step Solution
- Step 1: Write the proportion equation
288,880,580.62 : 398,655,973.95 = 156,721,577.14 : x - Step 2: Convert to fraction form
288,880,580.62/398,655,973.95 = 156,721,577.14/x - Step 3: Cross multiply
288,880,580.62x = 398,655,973.95 × 156,721,577.14 - Step 4: Simplify right side
288,880,580.62x = 62,477,992,973,726,744 - Step 5: Solve for x
x = 62,477,992,973,726,744/288,880,580.62 - Step 6: Final answer
x = 216,276,195.65
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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.