Finding the Fourth Proportional to 112,478,893.20, 168,718,339.80 and 39,695,095.80
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Solution
The fourth proportional to 112,478,893.20, 168,718,339.80 and 39,695,095.80 is: 59,542,643.70
Step by Step Solution
- Step 1: Write the proportion equation
112,478,893.20 : 168,718,339.80 = 39,695,095.80 : x - Step 2: Convert to fraction form
112,478,893.20/168,718,339.80 = 39,695,095.80/x - Step 3: Cross multiply
112,478,893.20x = 168,718,339.80 × 39,695,095.80 - Step 4: Simplify right side
112,478,893.20x = 6,697,290,661,577,953 - Step 5: Solve for x
x = 6,697,290,661,577,953/112,478,893.20 - Step 6: Final answer
x = 59,542,643.70
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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.