Finding the Fourth Proportional to 608,124,611.20, 912,186,916.80 and 531,597,107.20
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Solution
The fourth proportional to 608,124,611.20, 912,186,916.80 and 531,597,107.20 is: 797,395,660.80
Step by Step Solution
- Step 1: Write the proportion equation
608,124,611.20 : 912,186,916.80 = 531,597,107.20 : x - Step 2: Convert to fraction form
608,124,611.20/912,186,916.80 = 531,597,107.20/x - Step 3: Cross multiply
608,124,611.20x = 912,186,916.80 × 531,597,107.20 - Step 4: Simplify right side
608,124,611.20x = 484,915,926,196,567,040 - Step 5: Solve for x
x = 484,915,926,196,567,040/608,124,611.20 - Step 6: Final answer
x = 797,395,660.80
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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.