Finding the Fourth Proportional to 5,630,330.79, 7,776,312.66 and 3,705,185.16
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Solution
The fourth proportional to 5,630,330.79, 7,776,312.66 and 3,705,185.16 is: 5,117,404.17
Step by Step Solution
- Step 1: Write the proportion equation
5,630,330.79 : 7,776,312.66 = 3,705,185.16 : x - Step 2: Convert to fraction form
5,630,330.79/7,776,312.66 = 3,705,185.16/x - Step 3: Cross multiply
5,630,330.79x = 7,776,312.66 × 3,705,185.16 - Step 4: Simplify right side
5,630,330.79x = 28,812,678,267,352.13 - Step 5: Solve for x
x = 28,812,678,267,352.13/5,630,330.79 - Step 6: Final answer
x = 5,117,404.17
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.