Finding the Fourth Proportional to 5,228,427,339.20, 7,842,636,216.99 and 1,638,880,266.95
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Solution
The fourth proportional to 5,228,427,339.20, 7,842,636,216.99 and 1,638,880,266.95 is: 2,458,318,898.40
Step by Step Solution
- Step 1: Write the proportion equation
5,228,427,339.20 : 7,842,636,216.99 = 1,638,880,266.95 : x - Step 2: Convert to fraction form
5,228,427,339.20/7,842,636,216.99 = 1,638,880,266.95/x - Step 3: Cross multiply
5,228,427,339.20x = 7,842,636,216.99 × 1,638,880,266.95 - Step 4: Simplify right side
5,228,427,339.20x = 12,853,141,736,853,094,400 - Step 5: Solve for x
x = 12,853,141,736,853,094,400/5,228,427,339.20 - Step 6: Final answer
x = 2,458,318,898.40
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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.