Finding the Fourth Proportional to 1,324,950,935.54, 1,828,408,569.75 and 722,126,988.18
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Solution
The fourth proportional to 1,324,950,935.54, 1,828,408,569.75 and 722,126,988.18 is: 996,522,315.07
Step by Step Solution
- Step 1: Write the proportion equation
1,324,950,935.54 : 1,828,408,569.75 = 722,126,988.18 : x - Step 2: Convert to fraction form
1,324,950,935.54/1,828,408,569.75 = 722,126,988.18/x - Step 3: Cross multiply
1,324,950,935.54x = 1,828,408,569.75 × 722,126,988.18 - Step 4: Simplify right side
1,324,950,935.54x = 1,320,343,173,636,068,864 - Step 5: Solve for x
x = 1,320,343,173,636,068,864/1,324,950,935.54 - Step 6: Final answer
x = 996,522,315.07
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1.5x scale
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.