Finding the Fourth Proportional to 137,595,312.96, 189,879,129.48 and 74,869,294.80
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Solution
The fourth proportional to 137,595,312.96, 189,879,129.48 and 74,869,294.80 is: 103,318,319.61
Step by Step Solution
- Step 1: Write the proportion equation
137,595,312.96 : 189,879,129.48 = 74,869,294.80 : x - Step 2: Convert to fraction form
137,595,312.96/189,879,129.48 = 74,869,294.80/x - Step 3: Cross multiply
137,595,312.96x = 189,879,129.48 × 74,869,294.80 - Step 4: Simplify right side
137,595,312.96x = 14,216,116,521,405,490 - Step 5: Solve for x
x = 14,216,116,521,405,490/137,595,312.96 - Step 6: Final answer
x = 103,318,319.61
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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.