Finding the Fourth Proportional to 145,019,830.68, 199,746,138.72 and 111,465,142.84
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Solution
The fourth proportional to 145,019,830.68, 199,746,138.72 and 111,465,142.84 is: 153,528,877.95
Step by Step Solution
- Step 1: Write the proportion equation
145,019,830.68 : 199,746,138.72 = 111,465,142.84 : x - Step 2: Convert to fraction form
145,019,830.68/199,746,138.72 = 111,465,142.84/x - Step 3: Cross multiply
145,019,830.68x = 199,746,138.72 × 111,465,142.84 - Step 4: Simplify right side
145,019,830.68x = 22,264,731,884,163,256 - Step 5: Solve for x
x = 22,264,731,884,163,256/145,019,830.68 - Step 6: Final answer
x = 153,528,877.95
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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.