Finding the Fourth Proportional to 653,481,408.18, 901,781,438.02 and 356,117,582.44
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Solution
The fourth proportional to 653,481,408.18, 901,781,438.02 and 356,117,582.44 is: 491,429,781.44
Step by Step Solution
- Step 1: Write the proportion equation
653,481,408.18 : 901,781,438.02 = 356,117,582.44 : x - Step 2: Convert to fraction form
653,481,408.18/901,781,438.02 = 356,117,582.44/x - Step 3: Cross multiply
653,481,408.18x = 901,781,438.02 × 356,117,582.44 - Step 4: Simplify right side
653,481,408.18x = 321,140,225,596,949,120 - Step 5: Solve for x
x = 321,140,225,596,949,120/653,481,408.18 - Step 6: Final answer
x = 491,429,781.44
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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.