Finding the Fourth Proportional to 388,774,873.68, 583,577,296.86 and 167,555,387.70
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Solution
The fourth proportional to 388,774,873.68, 583,577,296.86 and 167,555,387.70 is: 251,511,933.64
Step by Step Solution
- Step 1: Write the proportion equation
388,774,873.68 : 583,577,296.86 = 167,555,387.70 : x - Step 2: Convert to fraction form
388,774,873.68/583,577,296.86 = 167,555,387.70/x - Step 3: Cross multiply
388,774,873.68x = 583,577,296.86 × 167,555,387.70 - Step 4: Simplify right side
388,774,873.68x = 97,781,520,228,295,296 - Step 5: Solve for x
x = 97,781,520,228,295,296/388,774,873.68 - Step 6: Final answer
x = 251,511,933.64
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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.