Finding the Fourth Proportional to 1,238,836,492.08, 1,709,639,470.08 and 674,294,107.14
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Solution
The fourth proportional to 1,238,836,492.08, 1,709,639,470.08 and 674,294,107.14 is: 930,550,421.61
Step by Step Solution
- Step 1: Write the proportion equation
1,238,836,492.08 : 1,709,639,470.08 = 674,294,107.14 : x - Step 2: Convert to fraction form
1,238,836,492.08/1,709,639,470.08 = 674,294,107.14/x - Step 3: Cross multiply
1,238,836,492.08x = 1,709,639,470.08 × 674,294,107.14 - Step 4: Simplify right side
1,238,836,492.08x = 1,152,799,820,008,896,256 - Step 5: Solve for x
x = 1,152,799,820,008,896,256/1,238,836,492.08 - Step 6: Final answer
x = 930,550,421.61
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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.