Finding the Fourth Proportional to 5,160,074.79, 7,740,159.12 and 1,565,841.90
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Solution
The fourth proportional to 5,160,074.79, 7,740,159.12 and 1,565,841.90 is: 2,348,777.09
Step by Step Solution
- Step 1: Write the proportion equation
5,160,074.79 : 7,740,159.12 = 1,565,841.90 : x - Step 2: Convert to fraction form
5,160,074.79/7,740,159.12 = 1,565,841.90/x - Step 3: Cross multiply
5,160,074.79x = 7,740,159.12 × 1,565,841.90 - Step 4: Simplify right side
5,160,074.79x = 12,119,865,462,763.13 - Step 5: Solve for x
x = 12,119,865,462,763.13/5,160,074.79 - Step 6: Final answer
x = 2,348,777.09
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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.