Finding the Fourth Proportional to 1,102,247,167.40, 1,521,100,420.41 and 607,209,875.90
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Solution
The fourth proportional to 1,102,247,167.40, 1,521,100,420.41 and 607,209,875.90 is: 837,949,259.32
Step by Step Solution
- Step 1: Write the proportion equation
1,102,247,167.40 : 1,521,100,420.41 = 607,209,875.90 : x - Step 2: Convert to fraction form
1,102,247,167.40/1,521,100,420.41 = 607,209,875.90/x - Step 3: Cross multiply
1,102,247,167.40x = 1,521,100,420.41 × 607,209,875.90 - Step 4: Simplify right side
1,102,247,167.40x = 923,627,197,500,988,416 - Step 5: Solve for x
x = 923,627,197,500,988,416/1,102,247,167.40 - Step 6: Final answer
x = 837,949,259.32
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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.