Finding the Fourth Proportional to 9,415,151.84, 12,992,526.96 and 5,340,683.36
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Solution
The fourth proportional to 9,415,151.84, 12,992,526.96 and 5,340,683.36 is: 7,369,926.02
Step by Step Solution
- Step 1: Write the proportion equation
9,415,151.84 : 12,992,526.96 = 5,340,683.36 : x - Step 2: Convert to fraction form
9,415,151.84/12,992,526.96 = 5,340,683.36/x - Step 3: Cross multiply
9,415,151.84x = 12,992,526.96 × 5,340,683.36 - Step 4: Simplify right side
9,415,151.84x = 69,388,972,539,623.40 - Step 5: Solve for x
x = 69,388,972,539,623.40/9,415,151.84 - Step 6: Final answer
x = 7,369,926.02
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1.5x scale
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.