Finding the Fourth Proportional to 5,228,427,336.19, 7,842,636,212.49 and 1,638,880,263.95
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Solution
The fourth proportional to 5,228,427,336.19, 7,842,636,212.49 and 1,638,880,263.95 is: 2,458,318,893.90
Step by Step Solution
- Step 1: Write the proportion equation
5,228,427,336.19 : 7,842,636,212.49 = 1,638,880,263.95 : x - Step 2: Convert to fraction form
5,228,427,336.19/7,842,636,212.49 = 1,638,880,263.95/x - Step 3: Cross multiply
5,228,427,336.19x = 7,842,636,212.49 × 1,638,880,263.95 - Step 4: Simplify right side
5,228,427,336.19x = 12,853,141,705,950,224,384 - Step 5: Solve for x
x = 12,853,141,705,950,224,384/5,228,427,336.19 - Step 6: Final answer
x = 2,458,318,893.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.