Finding the Fourth Proportional to 649,938,864.97, 896,915,633.68 and 371,486,367.28
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Solution
The fourth proportional to 649,938,864.97, 896,915,633.68 and 371,486,367.28 is: 512,651,186.86
Step by Step Solution
- Step 1: Write the proportion equation
649,938,864.97 : 896,915,633.68 = 371,486,367.28 : x - Step 2: Convert to fraction form
649,938,864.97/896,915,633.68 = 371,486,367.28/x - Step 3: Cross multiply
649,938,864.97x = 896,915,633.68 × 371,486,367.28 - Step 4: Simplify right side
649,938,864.97x = 333,191,930,512,422,400 - Step 5: Solve for x
x = 333,191,930,512,422,400/649,938,864.97 - Step 6: Final answer
x = 512,651,186.86
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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.