Finding the Fourth Proportional to 620,630,203.18, 931,172,309.49 and 288,795,474.52
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Solution
The fourth proportional to 620,630,203.18, 931,172,309.49 and 288,795,474.52 is: 433,298,843.02
Step by Step Solution
- Step 1: Write the proportion equation
620,630,203.18 : 931,172,309.49 = 288,795,474.52 : x - Step 2: Convert to fraction form
620,630,203.18/931,172,309.49 = 288,795,474.52/x - Step 3: Cross multiply
620,630,203.18x = 931,172,309.49 × 288,795,474.52 - Step 4: Simplify right side
620,630,203.18x = 268,918,348,979,048,832 - Step 5: Solve for x
x = 268,918,348,979,048,832/620,630,203.18 - Step 6: Final answer
x = 433,298,843.02
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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.