Finding the Fourth Proportional to 860,832,370.20, 1,291,248,555.30 and 794,319,576.60
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Solution
The fourth proportional to 860,832,370.20, 1,291,248,555.30 and 794,319,576.60 is: 1,191,479,364.90
Step by Step Solution
- Step 1: Write the proportion equation
860,832,370.20 : 1,291,248,555.30 = 794,319,576.60 : x - Step 2: Convert to fraction form
860,832,370.20/1,291,248,555.30 = 794,319,576.60/x - Step 3: Cross multiply
860,832,370.20x = 1,291,248,555.30 × 794,319,576.60 - Step 4: Simplify right side
860,832,370.20x = 1,025,664,005,731,257,728 - Step 5: Solve for x
x = 1,025,664,005,731,257,728/860,832,370.20 - Step 6: Final answer
x = 1,191,479,364.90
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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.