Finding the Fourth Proportional to 6,236,518.74, 9,355,664.88 and 1,918,926.96
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Solution
The fourth proportional to 6,236,518.74, 9,355,664.88 and 1,918,926.96 is: 2,878,663.29
Step by Step Solution
- Step 1: Write the proportion equation
6,236,518.74 : 9,355,664.88 = 1,918,926.96 : x - Step 2: Convert to fraction form
6,236,518.74/9,355,664.88 = 1,918,926.96/x - Step 3: Cross multiply
6,236,518.74x = 9,355,664.88 × 1,918,926.96 - Step 4: Simplify right side
6,236,518.74x = 17,952,837,566,957.17 - Step 5: Solve for x
x = 17,952,837,566,957.17/6,236,518.74 - Step 6: Final answer
x = 2,878,663.29
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1.5x scale
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.