Finding the Fourth Proportional to 137,465,924.48, 189,701,642.10 and 74,742,021.62
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Solution
The fourth proportional to 137,465,924.48, 189,701,642.10 and 74,742,021.62 is: 103,143,264.70
Step by Step Solution
- Step 1: Write the proportion equation
137,465,924.48 : 189,701,642.10 = 74,742,021.62 : x - Step 2: Convert to fraction form
137,465,924.48/189,701,642.10 = 74,742,021.62/x - Step 3: Cross multiply
137,465,924.48x = 189,701,642.10 × 74,742,021.62 - Step 4: Simplify right side
137,465,924.48x = 14,178,684,235,187,702 - Step 5: Solve for x
x = 14,178,684,235,187,702/137,465,924.48 - Step 6: Final answer
x = 103,143,264.70
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.