Finding the Fourth Proportional to 248,343,129.12, 342,713,834.64 and 135,312,085.92
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Solution
The fourth proportional to 248,343,129.12, 342,713,834.64 and 135,312,085.92 is: 186,730,850.99
Step by Step Solution
- Step 1: Write the proportion equation
248,343,129.12 : 342,713,834.64 = 135,312,085.92 : x - Step 2: Convert to fraction form
248,343,129.12/342,713,834.64 = 135,312,085.92/x - Step 3: Cross multiply
248,343,129.12x = 342,713,834.64 × 135,312,085.92 - Step 4: Simplify right side
248,343,129.12x = 46,373,323,838,780,344 - Step 5: Solve for x
x = 46,373,323,838,780,344/248,343,129.12 - Step 6: Final answer
x = 186,730,850.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.