Finding the Fourth Proportional to 649,989,627.84, 896,985,587.52 and 371,537,130.24
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Solution
The fourth proportional to 649,989,627.84, 896,985,587.52 and 371,537,130.24 is: 512,721,183.20
Step by Step Solution
- Step 1: Write the proportion equation
649,989,627.84 : 896,985,587.52 = 371,537,130.24 : x - Step 2: Convert to fraction form
649,989,627.84/896,985,587.52 = 371,537,130.24/x - Step 3: Cross multiply
649,989,627.84x = 896,985,587.52 × 371,537,130.24 - Step 4: Simplify right side
649,989,627.84x = 333,263,451,053,821,184 - Step 5: Solve for x
x = 333,263,451,053,821,184/649,989,627.84 - Step 6: Final answer
x = 512,721,183.20
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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.