Finding the Fourth Proportional to 1,672,313,477.96, 2,508,308,126.76 and 507,792,205.28
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Solution
The fourth proportional to 1,672,313,477.96, 2,508,308,126.76 and 507,792,205.28 is: 761,639,089.80
Step by Step Solution
- Step 1: Write the proportion equation
1,672,313,477.96 : 2,508,308,126.76 = 507,792,205.28 : x - Step 2: Convert to fraction form
1,672,313,477.96/2,508,308,126.76 = 507,792,205.28/x - Step 3: Cross multiply
1,672,313,477.96x = 2,508,308,126.76 × 507,792,205.28 - Step 4: Simplify right side
1,672,313,477.96x = 1,273,699,315,209,206,272 - Step 5: Solve for x
x = 1,273,699,315,209,206,272/1,672,313,477.96 - Step 6: Final answer
x = 761,639,089.80
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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.