Finding the Fourth Proportional to 920,025,687.84, 1,379,232,316.08 and 346,000,123.68
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Solution
The fourth proportional to 920,025,687.84, 1,379,232,316.08 and 346,000,123.68 is: 518,696,986.68
Step by Step Solution
- Step 1: Write the proportion equation
920,025,687.84 : 1,379,232,316.08 = 346,000,123.68 : x - Step 2: Convert to fraction form
920,025,687.84/1,379,232,316.08 = 346,000,123.68/x - Step 3: Cross multiply
920,025,687.84x = 1,379,232,316.08 × 346,000,123.68 - Step 4: Simplify right side
920,025,687.84x = 477,214,551,947,132,864 - Step 5: Solve for x
x = 477,214,551,947,132,864/920,025,687.84 - Step 6: Final answer
x = 518,696,986.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.