Finding the Fourth Proportional to 787,104,246.16, 1,178,365,122.24 and 412,724,361.88
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Solution
The fourth proportional to 787,104,246.16, 1,178,365,122.24 and 412,724,361.88 is: 617,885,109.26
Step by Step Solution
- Step 1: Write the proportion equation
787,104,246.16 : 1,178,365,122.24 = 412,724,361.88 : x - Step 2: Convert to fraction form
787,104,246.16/1,178,365,122.24 = 412,724,361.88/x - Step 3: Cross multiply
787,104,246.16x = 1,178,365,122.24 × 412,724,361.88 - Step 4: Simplify right side
787,104,246.16x = 486,339,993,138,152,192 - Step 5: Solve for x
x = 486,339,993,138,152,192/787,104,246.16 - Step 6: Final answer
x = 617,885,109.26
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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.