Finding the Fourth Proportional to 137,480,926.08, 189,724,664.96 and 74,756,574.56
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Solution
The fourth proportional to 137,480,926.08, 189,724,664.96 and 74,756,574.56 is: 103,164,609.57
Step by Step Solution
- Step 1: Write the proportion equation
137,480,926.08 : 189,724,664.96 = 74,756,574.56 : x - Step 2: Convert to fraction form
137,480,926.08/189,724,664.96 = 74,756,574.56/x - Step 3: Cross multiply
137,480,926.08x = 189,724,664.96 × 74,756,574.56 - Step 4: Simplify right side
137,480,926.08x = 14,183,166,061,953,260 - Step 5: Solve for x
x = 14,183,166,061,953,260/137,480,926.08 - Step 6: Final answer
x = 103,164,609.57
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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.