Finding the Fourth Proportional to 137,537,592.39, 189,802,878.09 and 74,814,231.93
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Solution
The fourth proportional to 137,537,592.39, 189,802,878.09 and 74,814,231.93 is: 103,244,184.34
Step by Step Solution
- Step 1: Write the proportion equation
137,537,592.39 : 189,802,878.09 = 74,814,231.93 : x - Step 2: Convert to fraction form
137,537,592.39/189,802,878.09 = 74,814,231.93/x - Step 3: Cross multiply
137,537,592.39x = 189,802,878.09 × 74,814,231.93 - Step 4: Simplify right side
137,537,592.39x = 14,199,956,542,406,778 - Step 5: Solve for x
x = 14,199,956,542,406,778/137,537,592.39 - Step 6: Final answer
x = 103,244,184.34
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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.