Finding the Fourth Proportional to 717,545,553.80, 1,076,318,330.70 and 390,177,897.80
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Solution
The fourth proportional to 717,545,553.80, 1,076,318,330.70 and 390,177,897.80 is: 585,266,846.70
Step by Step Solution
- Step 1: Write the proportion equation
717,545,553.80 : 1,076,318,330.70 = 390,177,897.80 : x - Step 2: Convert to fraction form
717,545,553.80/1,076,318,330.70 = 390,177,897.80/x - Step 3: Cross multiply
717,545,553.80x = 1,076,318,330.70 × 390,177,897.80 - Step 4: Simplify right side
717,545,553.80x = 419,955,623,636,131,264 - Step 5: Solve for x
x = 419,955,623,636,131,264/717,545,553.80 - Step 6: Final answer
x = 585,266,846.70
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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.