Finding the Fourth Proportional to 72,680,449.04, 109,020,673.68 and 29,539,544.96
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Solution
The fourth proportional to 72,680,449.04, 109,020,673.68 and 29,539,544.96 is: 44,309,317.49
Step by Step Solution
- Step 1: Write the proportion equation
72,680,449.04 : 109,020,673.68 = 29,539,544.96 : x - Step 2: Convert to fraction form
72,680,449.04/109,020,673.68 = 29,539,544.96/x - Step 3: Cross multiply
72,680,449.04x = 109,020,673.68 × 29,539,544.96 - Step 4: Simplify right side
72,680,449.04x = 3,220,421,091,739,849 - Step 5: Solve for x
x = 3,220,421,091,739,849/72,680,449.04 - Step 6: Final answer
x = 44,309,317.49
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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.