Finding the Fourth Proportional to 1,135,772,877.12, 1,567,367,618.40 and 614,252,109.12
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Solution
The fourth proportional to 1,135,772,877.12, 1,567,367,618.40 and 614,252,109.12 is: 847,668,477.35
Step by Step Solution
- Step 1: Write the proportion equation
1,135,772,877.12 : 1,567,367,618.40 = 614,252,109.12 : x - Step 2: Convert to fraction form
1,135,772,877.12/1,567,367,618.40 = 614,252,109.12/x - Step 3: Cross multiply
1,135,772,877.12x = 1,567,367,618.40 × 614,252,109.12 - Step 4: Simplify right side
1,135,772,877.12x = 962,758,865,368,591,360 - Step 5: Solve for x
x = 962,758,865,368,591,360/1,135,772,877.12 - Step 6: Final answer
x = 847,668,477.35
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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.