Finding the Fourth Proportional to 154,247,248.14, 212,861,606.64 and 83,682,854.68
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Solution
The fourth proportional to 154,247,248.14, 212,861,606.64 and 83,682,854.68 is: 115,482,558.75
Step by Step Solution
- Step 1: Write the proportion equation
154,247,248.14 : 212,861,606.64 = 83,682,854.68 : x - Step 2: Convert to fraction form
154,247,248.14/212,861,606.64 = 83,682,854.68/x - Step 3: Cross multiply
154,247,248.14x = 212,861,606.64 × 83,682,854.68 - Step 4: Simplify right side
154,247,248.14x = 17,812,866,895,406,444 - Step 5: Solve for x
x = 17,812,866,895,406,444/154,247,248.14 - Step 6: Final answer
x = 115,482,558.75
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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.