Finding the Fourth Proportional to 660,670,877.80, 991,006,316.70 and 229,849,373.80
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Solution
The fourth proportional to 660,670,877.80, 991,006,316.70 and 229,849,373.80 is: 344,774,060.70
Step by Step Solution
- Step 1: Write the proportion equation
660,670,877.80 : 991,006,316.70 = 229,849,373.80 : x - Step 2: Convert to fraction form
660,670,877.80/991,006,316.70 = 229,849,373.80/x - Step 3: Cross multiply
660,670,877.80x = 991,006,316.70 × 229,849,373.80 - Step 4: Simplify right side
660,670,877.80x = 227,782,181,325,339,520 - Step 5: Solve for x
x = 227,782,181,325,339,520/660,670,877.80 - Step 6: Final answer
x = 344,774,060.70
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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.