Finding the Fourth Proportional to 384,913,135.80, 577,369,703.70 and 362,238,319.80
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Solution
The fourth proportional to 384,913,135.80, 577,369,703.70 and 362,238,319.80 is: 543,357,479.70
Step by Step Solution
- Step 1: Write the proportion equation
384,913,135.80 : 577,369,703.70 = 362,238,319.80 : x - Step 2: Convert to fraction form
384,913,135.80/577,369,703.70 = 362,238,319.80/x - Step 3: Cross multiply
384,913,135.80x = 577,369,703.70 × 362,238,319.80 - Step 4: Simplify right side
384,913,135.80x = 209,145,431,371,711,872 - Step 5: Solve for x
x = 209,145,431,371,711,872/384,913,135.80 - Step 6: Final answer
x = 543,357,479.70
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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.