Finding the Fourth Proportional to 288,917,537.12, 398,701,173.20 and 175,846,157.08
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Solution
The fourth proportional to 288,917,537.12, 398,701,173.20 and 175,846,157.08 is: 242,664,636.52
Step by Step Solution
- Step 1: Write the proportion equation
288,917,537.12 : 398,701,173.20 = 175,846,157.08 : x - Step 2: Convert to fraction form
288,917,537.12/398,701,173.20 = 175,846,157.08/x - Step 3: Cross multiply
288,917,537.12x = 398,701,173.20 × 175,846,157.08 - Step 4: Simplify right side
288,917,537.12x = 70,110,069,130,507,488 - Step 5: Solve for x
x = 70,110,069,130,507,488/288,917,537.12 - Step 6: Final answer
x = 242,664,636.52
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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.