Finding the Fourth Proportional to 39,127,119.18, 53,992,926.72 and 21,723,460.02
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Solution
The fourth proportional to 39,127,119.18, 53,992,926.72 and 21,723,460.02 is: 29,976,988.07
Step by Step Solution
- Step 1: Write the proportion equation
39,127,119.18 : 53,992,926.72 = 21,723,460.02 : x - Step 2: Convert to fraction form
39,127,119.18/53,992,926.72 = 21,723,460.02/x - Step 3: Cross multiply
39,127,119.18x = 53,992,926.72 × 21,723,460.02 - Step 4: Simplify right side
39,127,119.18x = 1,172,913,184,964,709.75 - Step 5: Solve for x
x = 1,172,913,184,964,709.75/39,127,119.18 - Step 6: Final answer
x = 29,976,988.07
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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.