Finding the Fourth Proportional to 180,558,456.80, 249,246,941.52 and 121,900,570.08
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Solution
The fourth proportional to 180,558,456.80, 249,246,941.52 and 121,900,570.08 is: 168,274,279.70
Step by Step Solution
- Step 1: Write the proportion equation
180,558,456.80 : 249,246,941.52 = 121,900,570.08 : x - Step 2: Convert to fraction form
180,558,456.80/249,246,941.52 = 121,900,570.08/x - Step 3: Cross multiply
180,558,456.80x = 249,246,941.52 × 121,900,570.08 - Step 4: Simplify right side
180,558,456.80x = 30,383,344,261,984,424 - Step 5: Solve for x
x = 30,383,344,261,984,424/180,558,456.80 - Step 6: Final answer
x = 168,274,279.70
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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.