Finding the Fourth Proportional to 989,443,312.56, 1,484,164,124.09 and 252,513,158.08
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Solution
The fourth proportional to 989,443,312.56, 1,484,164,124.09 and 252,513,158.08 is: 378,769,521.53
Step by Step Solution
- Step 1: Write the proportion equation
989,443,312.56 : 1,484,164,124.09 = 252,513,158.08 : x - Step 2: Convert to fraction form
989,443,312.56/1,484,164,124.09 = 252,513,158.08/x - Step 3: Cross multiply
989,443,312.56x = 1,484,164,124.09 × 252,513,158.08 - Step 4: Simplify right side
989,443,312.56x = 374,770,970,083,002,880 - Step 5: Solve for x
x = 374,770,970,083,002,880/989,443,312.56 - Step 6: Final answer
x = 378,769,521.53
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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.