Finding the Fourth Proportional to 4,220,988,321.28, 6,331,536,364.12 and 1,115,544,133.76
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Solution
The fourth proportional to 4,220,988,321.28, 6,331,536,364.12 and 1,115,544,133.76 is: 1,673,330,440.90
Step by Step Solution
- Step 1: Write the proportion equation
4,220,988,321.28 : 6,331,536,364.12 = 1,115,544,133.76 : x - Step 2: Convert to fraction form
4,220,988,321.28/6,331,536,364.12 = 1,115,544,133.76/x - Step 3: Cross multiply
4,220,988,321.28x = 6,331,536,364.12 × 1,115,544,133.76 - Step 4: Simplify right side
4,220,988,321.28x = 7,063,108,248,682,184,704 - Step 5: Solve for x
x = 7,063,108,248,682,184,704/4,220,988,321.28 - Step 6: Final answer
x = 1,673,330,440.90
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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.