Finding the Fourth Proportional to 747,677,401.20, 1,121,516,101.80 and 256,324,767.30
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Solution
The fourth proportional to 747,677,401.20, 1,121,516,101.80 and 256,324,767.30 is: 384,487,150.95
Step by Step Solution
- Step 1: Write the proportion equation
747,677,401.20 : 1,121,516,101.80 = 256,324,767.30 : x - Step 2: Convert to fraction form
747,677,401.20/1,121,516,101.80 = 256,324,767.30/x - Step 3: Cross multiply
747,677,401.20x = 1,121,516,101.80 × 256,324,767.30 - Step 4: Simplify right side
747,677,401.20x = 287,472,353,817,088,128 - Step 5: Solve for x
x = 287,472,353,817,088,128/747,677,401.20 - Step 6: Final answer
x = 384,487,150.95
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1.5x scale
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.