Finding the Fourth Proportional to 8,123,026,122.47, 11,208,097,418.65 and 4,689,664,940.99
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Solution
The fourth proportional to 8,123,026,122.47, 11,208,097,418.65 and 4,689,664,940.99 is: 6,470,768,495.26
Step by Step Solution
- Step 1: Write the proportion equation
8,123,026,122.47 : 11,208,097,418.65 = 4,689,664,940.99 : x - Step 2: Convert to fraction form
8,123,026,122.47/11,208,097,418.65 = 4,689,664,940.99/x - Step 3: Cross multiply
8,123,026,122.47x = 11,208,097,418.65 × 4,689,664,940.99 - Step 4: Simplify right side
8,123,026,122.47x = 52,562,221,519,462,072,320 - Step 5: Solve for x
x = 52,562,221,519,462,072,320/8,123,026,122.47 - Step 6: Final answer
x = 6,470,768,495.26
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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.