Finding the Fourth Proportional to 7,711,387.54, 11,581,488.64 and 6,788,470.71
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Solution
The fourth proportional to 7,711,387.54, 11,581,488.64 and 6,788,470.71 is: 10,195,389.09
Step by Step Solution
- Step 1: Write the proportion equation
7,711,387.54 : 11,581,488.64 = 6,788,470.71 : x - Step 2: Convert to fraction form
7,711,387.54/11,581,488.64 = 6,788,470.71/x - Step 3: Cross multiply
7,711,387.54x = 11,581,488.64 × 6,788,470.71 - Step 4: Simplify right side
7,711,387.54x = 78,620,596,365,035.09 - Step 5: Solve for x
x = 78,620,596,365,035.09/7,711,387.54 - Step 6: Final answer
x = 10,195,389.09
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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.