Finding the Fourth Proportional to 40,011,129.59, 55,215,414.86 and 21,676,415.09
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Solution
The fourth proportional to 40,011,129.59, 55,215,414.86 and 21,676,415.09 is: 29,913,483.17
Step by Step Solution
- Step 1: Write the proportion equation
40,011,129.59 : 55,215,414.86 = 21,676,415.09 : x - Step 2: Convert to fraction form
40,011,129.59/55,215,414.86 = 21,676,415.09/x - Step 3: Cross multiply
40,011,129.59x = 55,215,414.86 × 21,676,415.09 - Step 4: Simplify right side
40,011,129.59x = 1,196,872,251,487,455 - Step 5: Solve for x
x = 1,196,872,251,487,455/40,011,129.59 - Step 6: Final answer
x = 29,913,483.17
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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.