Finding the Fourth Proportional to 860,832,165.20, 1,291,248,247.80 and 794,319,371.60
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Solution
The fourth proportional to 860,832,165.20, 1,291,248,247.80 and 794,319,371.60 is: 1,191,479,057.40
Step by Step Solution
- Step 1: Write the proportion equation
860,832,165.20 : 1,291,248,247.80 = 794,319,371.60 : x - Step 2: Convert to fraction form
860,832,165.20/1,291,248,247.80 = 794,319,371.60/x - Step 3: Cross multiply
860,832,165.20x = 1,291,248,247.80 × 794,319,371.60 - Step 4: Simplify right side
860,832,165.20x = 1,025,663,496,772,097,024 - Step 5: Solve for x
x = 1,025,663,496,772,097,024/860,832,165.20 - Step 6: Final answer
x = 1,191,479,057.40
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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.