Finding the Fourth Proportional to 659,126,838.60, 988,690,257.90 and 368,889,193.80
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Solution
The fourth proportional to 659,126,838.60, 988,690,257.90 and 368,889,193.80 is: 553,333,790.70
Step by Step Solution
- Step 1: Write the proportion equation
659,126,838.60 : 988,690,257.90 = 368,889,193.80 : x - Step 2: Convert to fraction form
659,126,838.60/988,690,257.90 = 368,889,193.80/x - Step 3: Cross multiply
659,126,838.60x = 988,690,257.90 × 368,889,193.80 - Step 4: Simplify right side
659,126,838.60x = 364,717,152,154,645,056 - Step 5: Solve for x
x = 364,717,152,154,645,056/659,126,838.60 - Step 6: Final answer
x = 553,333,790.70
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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.