Finding the Fourth Proportional to 400,541,713.68, 552,740,248.94 and 221,924,950.58
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Solution
The fourth proportional to 400,541,713.68, 552,740,248.94 and 221,924,950.58 is: 306,252,378.32
Step by Step Solution
- Step 1: Write the proportion equation
400,541,713.68 : 552,740,248.94 = 221,924,950.58 : x - Step 2: Convert to fraction form
400,541,713.68/552,740,248.94 = 221,924,950.58/x - Step 3: Cross multiply
400,541,713.68x = 552,740,248.94 × 221,924,950.58 - Step 4: Simplify right side
400,541,713.68x = 122,666,852,429,586,416 - Step 5: Solve for x
x = 122,666,852,429,586,416/400,541,713.68 - Step 6: Final answer
x = 306,252,378.32
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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.