Finding the Fourth Proportional to 783,592,663.68, 1,175,025,783.84 and 292,173,988.32
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Solution
The fourth proportional to 783,592,663.68, 1,175,025,783.84 and 292,173,988.32 is: 438,125,553.69
Step by Step Solution
- Step 1: Write the proportion equation
783,592,663.68 : 1,175,025,783.84 = 292,173,988.32 : x - Step 2: Convert to fraction form
783,592,663.68/1,175,025,783.84 = 292,173,988.32/x - Step 3: Cross multiply
783,592,663.68x = 1,175,025,783.84 × 292,173,988.32 - Step 4: Simplify right side
783,592,663.68x = 343,311,969,643,366,976 - Step 5: Solve for x
x = 343,311,969,643,366,976/783,592,663.68 - Step 6: Final answer
x = 438,125,553.69
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.