Finding the Fourth Proportional to 1,663,736,440.48, 2,296,028,032.12 and 921,180,568.84
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Solution
The fourth proportional to 1,663,736,440.48, 2,296,028,032.12 and 921,180,568.84 is: 1,271,268,908.49
Step by Step Solution
- Step 1: Write the proportion equation
1,663,736,440.48 : 2,296,028,032.12 = 921,180,568.84 : x - Step 2: Convert to fraction form
1,663,736,440.48/2,296,028,032.12 = 921,180,568.84/x - Step 3: Cross multiply
1,663,736,440.48x = 2,296,028,032.12 × 921,180,568.84 - Step 4: Simplify right side
1,663,736,440.48x = 2,115,056,408,700,887,296 - Step 5: Solve for x
x = 2,115,056,408,700,887,296/1,663,736,440.48 - Step 6: Final answer
x = 1,271,268,908.49
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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.