Finding the Fourth Proportional to 258,233,953.12, 356,161,257.68 and 165,423,090.40
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Solution
The fourth proportional to 258,233,953.12, 356,161,257.68 and 165,423,090.40 is: 228,154,722.55
Step by Step Solution
- Step 1: Write the proportion equation
258,233,953.12 : 356,161,257.68 = 165,423,090.40 : x - Step 2: Convert to fraction form
258,233,953.12/356,161,257.68 = 165,423,090.40/x - Step 3: Cross multiply
258,233,953.12x = 356,161,257.68 × 165,423,090.40 - Step 4: Simplify right side
258,233,953.12x = 58,917,295,926,176,336 - Step 5: Solve for x
x = 58,917,295,926,176,336/258,233,953.12 - Step 6: Final answer
x = 228,154,722.55
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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.