Finding the Fourth Proportional to 651,648,121.20, 977,212,366.20 and 214,827,238.80
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Solution
The fourth proportional to 651,648,121.20, 977,212,366.20 and 214,827,238.80 is: 322,155,205.43
Step by Step Solution
- Step 1: Write the proportion equation
651,648,121.20 : 977,212,366.20 = 214,827,238.80 : x - Step 2: Convert to fraction form
651,648,121.20/977,212,366.20 = 214,827,238.80/x - Step 3: Cross multiply
651,648,121.20x = 977,212,366.20 × 214,827,238.80 - Step 4: Simplify right side
651,648,121.20x = 209,931,834,351,960,480 - Step 5: Solve for x
x = 209,931,834,351,960,480/651,648,121.20 - Step 6: Final answer
x = 322,155,205.43
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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.