Finding the Fourth Proportional to 148,514,725.30, 222,772,087.95 and 87,133,289.80
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Solution
The fourth proportional to 148,514,725.30, 222,772,087.95 and 87,133,289.80 is: 130,699,934.70
Step by Step Solution
- Step 1: Write the proportion equation
148,514,725.30 : 222,772,087.95 = 87,133,289.80 : x - Step 2: Convert to fraction form
148,514,725.30/222,772,087.95 = 87,133,289.80/x - Step 3: Cross multiply
148,514,725.30x = 222,772,087.95 × 87,133,289.80 - Step 4: Simplify right side
148,514,725.30x = 19,410,864,898,698,436 - Step 5: Solve for x
x = 19,410,864,898,698,436/148,514,725.30 - Step 6: Final answer
x = 130,699,934.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.