Finding the Fourth Proportional to 7,721,336.84, 10,651,017.79 and 4,815,683.15
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Solution
The fourth proportional to 7,721,336.84, 10,651,017.79 and 4,815,683.15 is: 6,642,881.66
Step by Step Solution
- Step 1: Write the proportion equation
7,721,336.84 : 10,651,017.79 = 4,815,683.15 : x - Step 2: Convert to fraction form
7,721,336.84/10,651,017.79 = 4,815,683.15/x - Step 3: Cross multiply
7,721,336.84x = 10,651,017.79 × 4,815,683.15 - Step 4: Simplify right side
7,721,336.84x = 51,291,926,901,653.23 - Step 5: Solve for x
x = 51,291,926,901,653.23/7,721,336.84 - Step 6: Final answer
x = 6,642,881.66
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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.