Finding the Fourth Proportional to 603,408,267.70, 905,112,401.55 and 521,619,497.80
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Solution
The fourth proportional to 603,408,267.70, 905,112,401.55 and 521,619,497.80 is: 782,429,246.70
Step by Step Solution
- Step 1: Write the proportion equation
603,408,267.70 : 905,112,401.55 = 521,619,497.80 : x - Step 2: Convert to fraction form
603,408,267.70/905,112,401.55 = 521,619,497.80/x - Step 3: Cross multiply
603,408,267.70x = 905,112,401.55 × 521,619,497.80 - Step 4: Simplify right side
603,408,267.70x = 472,124,276,349,062,912 - Step 5: Solve for x
x = 472,124,276,349,062,912/603,408,267.70 - Step 6: Final answer
x = 782,429,246.70
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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.