Finding the Fourth Proportional to 40,056,681.44, 55,278,235.04 and 21,721,962.08
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Solution
The fourth proportional to 40,056,681.44, 55,278,235.04 and 21,721,962.08 is: 29,976,315.62
Step by Step Solution
- Step 1: Write the proportion equation
40,056,681.44 : 55,278,235.04 = 21,721,962.08 : x - Step 2: Convert to fraction form
40,056,681.44/55,278,235.04 = 21,721,962.08/x - Step 3: Cross multiply
40,056,681.44x = 55,278,235.04 × 21,721,962.08 - Step 4: Simplify right side
40,056,681.44x = 1,200,751,725,388,207.25 - Step 5: Solve for x
x = 1,200,751,725,388,207.25/40,056,681.44 - Step 6: Final answer
x = 29,976,315.62
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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.