Finding the Fourth Proportional to 3,118,918,352.91, 4,678,336,664.58 and 758,072,453.50
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Solution
The fourth proportional to 3,118,918,352.91, 4,678,336,664.58 and 758,072,453.50 is: 1,137,098,747.82
Step by Step Solution
- Step 1: Write the proportion equation
3,118,918,352.91 : 4,678,336,664.58 = 758,072,453.50 : x - Step 2: Convert to fraction form
3,118,918,352.91/4,678,336,664.58 = 758,072,453.50/x - Step 3: Cross multiply
3,118,918,352.91x = 4,678,336,664.58 × 758,072,453.50 - Step 4: Simplify right side
3,118,918,352.91x = 3,546,518,153,637,106,688 - Step 5: Solve for x
x = 3,546,518,153,637,106,688/3,118,918,352.91 - Step 6: Final answer
x = 1,137,098,747.82
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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.