Finding the Fourth Proportional to 86,326,135.20, 129,497,918.76 and 28,031,375.76
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Solution
The fourth proportional to 86,326,135.20, 129,497,918.76 and 28,031,375.76 is: 42,049,893.84
Step by Step Solution
- Step 1: Write the proportion equation
86,326,135.20 : 129,497,918.76 = 28,031,375.76 : x - Step 2: Convert to fraction form
86,326,135.20/129,497,918.76 = 28,031,375.76/x - Step 3: Cross multiply
86,326,135.20x = 129,497,918.76 × 28,031,375.76 - Step 4: Simplify right side
86,326,135.20x = 3,630,004,820,899,513.50 - Step 5: Solve for x
x = 3,630,004,820,899,513.50/86,326,135.20 - Step 6: Final answer
x = 42,049,893.84
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.