Finding the Fourth Proportional to 153,682,746.26, 212,083,872.53 and 84,068,127.83
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Solution
The fourth proportional to 153,682,746.26, 212,083,872.53 and 84,068,127.83 is: 116,014,936.88
Step by Step Solution
- Step 1: Write the proportion equation
153,682,746.26 : 212,083,872.53 = 84,068,127.83 : x - Step 2: Convert to fraction form
153,682,746.26/212,083,872.53 = 84,068,127.83/x - Step 3: Cross multiply
153,682,746.26x = 212,083,872.53 × 84,068,127.83 - Step 4: Simplify right side
153,682,746.26x = 17,829,494,106,533,466 - Step 5: Solve for x
x = 17,829,494,106,533,466/153,682,746.26 - Step 6: Final answer
x = 116,014,936.88
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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.