Finding the Fourth Proportional to 1,124,277,526.39, 1,551,551,470.20 and 622,486,319.62
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Solution
The fourth proportional to 1,124,277,526.39, 1,551,551,470.20 and 622,486,319.62 is: 859,057,965.42
Step by Step Solution
- Step 1: Write the proportion equation
1,124,277,526.39 : 1,551,551,470.20 = 622,486,319.62 : x - Step 2: Convert to fraction form
1,124,277,526.39/1,551,551,470.20 = 622,486,319.62/x - Step 3: Cross multiply
1,124,277,526.39x = 1,551,551,470.20 × 622,486,319.62 - Step 4: Simplify right side
1,124,277,526.39x = 965,819,564,385,798,144 - Step 5: Solve for x
x = 965,819,564,385,798,144/1,124,277,526.39 - Step 6: Final answer
x = 859,057,965.42
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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.