Finding the Fourth Proportional to 258,069,580.00, 387,225,438.77 and 128,687,279.19
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Solution
The fourth proportional to 258,069,580.00, 387,225,438.77 and 128,687,279.19 is: 193,091,290.15
Step by Step Solution
- Step 1: Write the proportion equation
258,069,580.00 : 387,225,438.77 = 128,687,279.19 : x - Step 2: Convert to fraction form
258,069,580.00/387,225,438.77 = 128,687,279.19/x - Step 3: Cross multiply
258,069,580.00x = 387,225,438.77 × 128,687,279.19 - Step 4: Simplify right side
258,069,580.00x = 49,830,988,149,514,944 - Step 5: Solve for x
x = 49,830,988,149,514,944/258,069,580.00 - Step 6: Final answer
x = 193,091,290.15
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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.