Finding the Fourth Proportional to 9,721,508.64, 13,415,618.16 and 5,370,875.52
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Solution
The fourth proportional to 9,721,508.64, 13,415,618.16 and 5,370,875.52 is: 7,411,772.99
Step by Step Solution
- Step 1: Write the proportion equation
9,721,508.64 : 13,415,618.16 = 5,370,875.52 : x - Step 2: Convert to fraction form
9,721,508.64/13,415,618.16 = 5,370,875.52/x - Step 3: Cross multiply
9,721,508.64x = 13,415,618.16 × 5,370,875.52 - Step 4: Simplify right side
9,721,508.64x = 72,053,615,161,211.44 - Step 5: Solve for x
x = 72,053,615,161,211.44/9,721,508.64 - Step 6: Final answer
x = 7,411,772.99
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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.