Finding the Fourth Proportional to 543,982,292.70, 750,698,106.18 and 309,045,844.80
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Solution
The fourth proportional to 543,982,292.70, 750,698,106.18 and 309,045,844.80 is: 426,484,710.12
Step by Step Solution
- Step 1: Write the proportion equation
543,982,292.70 : 750,698,106.18 = 309,045,844.80 : x - Step 2: Convert to fraction form
543,982,292.70/750,698,106.18 = 309,045,844.80/x - Step 3: Cross multiply
543,982,292.70x = 750,698,106.18 × 309,045,844.80 - Step 4: Simplify right side
543,982,292.70x = 232,000,130,414,158,208 - Step 5: Solve for x
x = 232,000,130,414,158,208/543,982,292.70 - Step 6: Final answer
x = 426,484,710.12
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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.