Finding the Fourth Proportional to 455,254,808.96, 682,882,705.92 and 213,087,774.08
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Solution
The fourth proportional to 455,254,808.96, 682,882,705.92 and 213,087,774.08 is: 319,631,891.63
Step by Step Solution
- Step 1: Write the proportion equation
455,254,808.96 : 682,882,705.92 = 213,087,774.08 : x - Step 2: Convert to fraction form
455,254,808.96/682,882,705.92 = 213,087,774.08/x - Step 3: Cross multiply
455,254,808.96x = 682,882,705.92 × 213,087,774.08 - Step 4: Simplify right side
455,254,808.96x = 145,513,955,762,220,032 - Step 5: Solve for x
x = 145,513,955,762,220,032/455,254,808.96 - Step 6: Final answer
x = 319,631,891.63
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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.