Finding the Fourth Proportional to 156,650,835.84, 216,183,987.64 and 93,937,144.20
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Solution
The fourth proportional to 156,650,835.84, 216,183,987.64 and 93,937,144.20 is: 129,636,757.52
Step by Step Solution
- Step 1: Write the proportion equation
156,650,835.84 : 216,183,987.64 = 93,937,144.20 : x - Step 2: Convert to fraction form
156,650,835.84/216,183,987.64 = 93,937,144.20/x - Step 3: Cross multiply
156,650,835.84x = 216,183,987.64 × 93,937,144.20 - Step 4: Simplify right side
156,650,835.84x = 20,307,706,420,669,696 - Step 5: Solve for x
x = 20,307,706,420,669,696/156,650,835.84 - Step 6: Final answer
x = 129,636,757.52
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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.