Finding the Fourth Proportional to 97,115,253.20, 145,672,879.80 and 86,533,672.40
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Solution
The fourth proportional to 97,115,253.20, 145,672,879.80 and 86,533,672.40 is: 129,800,508.60
Step by Step Solution
- Step 1: Write the proportion equation
97,115,253.20 : 145,672,879.80 = 86,533,672.40 : x - Step 2: Convert to fraction form
97,115,253.20/145,672,879.80 = 86,533,672.40/x - Step 3: Cross multiply
97,115,253.20x = 145,672,879.80 × 86,533,672.40 - Step 4: Simplify right side
97,115,253.20x = 12,605,609,258,177,780 - Step 5: Solve for x
x = 12,605,609,258,177,780/97,115,253.20 - Step 6: Final answer
x = 129,800,508.60
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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.