Finding the Fourth Proportional to 1,178,624,187.03, 1,767,449,864.16 and 402,332,375.10
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Solution
The fourth proportional to 1,178,624,187.03, 1,767,449,864.16 and 402,332,375.10 is: 603,332,520.70
Step by Step Solution
- Step 1: Write the proportion equation
1,178,624,187.03 : 1,767,449,864.16 = 402,332,375.10 : x - Step 2: Convert to fraction form
1,178,624,187.03/1,767,449,864.16 = 402,332,375.10/x - Step 3: Cross multiply
1,178,624,187.03x = 1,767,449,864.16 × 402,332,375.10 - Step 4: Simplify right side
1,178,624,187.03x = 711,102,301,717,665,280 - Step 5: Solve for x
x = 711,102,301,717,665,280/1,178,624,187.03 - Step 6: Final answer
x = 603,332,520.70
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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.