Finding the Fourth Proportional to 659,553,103.80, 989,777,553.30 and 368,419,663.80
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Solution
The fourth proportional to 659,553,103.80, 989,777,553.30 and 368,419,663.80 is: 552,879,686.75
Step by Step Solution
- Step 1: Write the proportion equation
659,553,103.80 : 989,777,553.30 = 368,419,663.80 : x - Step 2: Convert to fraction form
659,553,103.80/989,777,553.30 = 368,419,663.80/x - Step 3: Cross multiply
659,553,103.80x = 989,777,553.30 × 368,419,663.80 - Step 4: Simplify right side
659,553,103.80x = 364,653,513,423,572,544 - Step 5: Solve for x
x = 364,653,513,423,572,544/659,553,103.80 - Step 6: Final answer
x = 552,879,686.75
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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.