Finding the Fourth Proportional to 39,281,926.44, 54,210,747.86 and 21,878,279.40
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Solution
The fourth proportional to 39,281,926.44, 54,210,747.86 and 21,878,279.40 is: 30,192,966.48
Step by Step Solution
- Step 1: Write the proportion equation
39,281,926.44 : 54,210,747.86 = 21,878,279.40 : x - Step 2: Convert to fraction form
39,281,926.44/54,210,747.86 = 21,878,279.40/x - Step 3: Cross multiply
39,281,926.44x = 54,210,747.86 × 21,878,279.40 - Step 4: Simplify right side
39,281,926.44x = 1,186,037,888,164,032 - Step 5: Solve for x
x = 1,186,037,888,164,032/39,281,926.44 - Step 6: Final answer
x = 30,192,966.48
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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.