Finding the Fourth Proportional to 268,326,029.10, 402,489,043.65 and 86,573,207.10
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Solution
The fourth proportional to 268,326,029.10, 402,489,043.65 and 86,573,207.10 is: 129,859,810.65
Step by Step Solution
- Step 1: Write the proportion equation
268,326,029.10 : 402,489,043.65 = 86,573,207.10 : x - Step 2: Convert to fraction form
268,326,029.10/402,489,043.65 = 86,573,207.10/x - Step 3: Cross multiply
268,326,029.10x = 402,489,043.65 × 86,573,207.10 - Step 4: Simplify right side
268,326,029.10x = 34,844,767,331,392,384 - Step 5: Solve for x
x = 34,844,767,331,392,384/268,326,029.10 - Step 6: Final answer
x = 129,859,810.65
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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.