Finding the Fourth Proportional to 80,109,095.80, 120,163,643.70 and 53,182,751.80
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Solution
The fourth proportional to 80,109,095.80, 120,163,643.70 and 53,182,751.80 is: 79,774,127.70
Step by Step Solution
- Step 1: Write the proportion equation
80,109,095.80 : 120,163,643.70 = 53,182,751.80 : x - Step 2: Convert to fraction form
80,109,095.80/120,163,643.70 = 53,182,751.80/x - Step 3: Cross multiply
80,109,095.80x = 120,163,643.70 × 53,182,751.80 - Step 4: Simplify right side
80,109,095.80x = 6,390,633,238,280,733 - Step 5: Solve for x
x = 6,390,633,238,280,733/80,109,095.80 - Step 6: Final answer
x = 79,774,127.70
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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.