Finding the Fourth Proportional to 180,558,455.80, 249,246,940.14 and 121,900,569.08
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Solution
The fourth proportional to 180,558,455.80, 249,246,940.14 and 121,900,569.08 is: 168,274,278.32
Step by Step Solution
- Step 1: Write the proportion equation
180,558,455.80 : 249,246,940.14 = 121,900,569.08 : x - Step 2: Convert to fraction form
180,558,455.80/249,246,940.14 = 121,900,569.08/x - Step 3: Cross multiply
180,558,455.80x = 249,246,940.14 × 121,900,569.08 - Step 4: Simplify right side
180,558,455.80x = 30,383,343,844,514,692 - Step 5: Solve for x
x = 30,383,343,844,514,692/180,558,455.80 - Step 6: Final answer
x = 168,274,278.32
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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.