Finding the Fourth Proportional to 637,754,981.92, 956,632,485.84 and 153,080,789.92
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Solution
The fourth proportional to 637,754,981.92, 956,632,485.84 and 153,080,789.92 is: 229,621,187.99
Step by Step Solution
- Step 1: Write the proportion equation
637,754,981.92 : 956,632,485.84 = 153,080,789.92 : x - Step 2: Convert to fraction form
637,754,981.92/956,632,485.84 = 153,080,789.92/x - Step 3: Cross multiply
637,754,981.92x = 956,632,485.84 × 153,080,789.92 - Step 4: Simplify right side
637,754,981.92x = 146,442,056,595,520,416 - Step 5: Solve for x
x = 146,442,056,595,520,416/637,754,981.92 - Step 6: Final answer
x = 229,621,187.99
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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.