Finding the Fourth Proportional to 7,811,781.84, 11,717,089.38 and 2,420,473.68
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Solution
The fourth proportional to 7,811,781.84, 11,717,089.38 and 2,420,473.68 is: 3,630,529.76
Step by Step Solution
- Step 1: Write the proportion equation
7,811,781.84 : 11,717,089.38 = 2,420,473.68 : x - Step 2: Convert to fraction form
7,811,781.84/11,717,089.38 = 2,420,473.68/x - Step 3: Cross multiply
7,811,781.84x = 11,717,089.38 × 2,420,473.68 - Step 4: Simplify right side
7,811,781.84x = 28,360,906,450,497.52 - Step 5: Solve for x
x = 28,360,906,450,497.52/7,811,781.84 - Step 6: Final answer
x = 3,630,529.76
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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.