Finding the Fourth Proportional to 124,892,072.19, 172,352,423.23 and 69,138,423.88
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Solution
The fourth proportional to 124,892,072.19, 172,352,423.23 and 69,138,423.88 is: 95,411,779.82
Step by Step Solution
- Step 1: Write the proportion equation
124,892,072.19 : 172,352,423.23 = 69,138,423.88 : x - Step 2: Convert to fraction form
124,892,072.19/172,352,423.23 = 69,138,423.88/x - Step 3: Cross multiply
124,892,072.19x = 172,352,423.23 × 69,138,423.88 - Step 4: Simplify right side
124,892,072.19x = 11,916,174,892,813,444 - Step 5: Solve for x
x = 11,916,174,892,813,444/124,892,072.19 - Step 6: Final answer
x = 95,411,779.82
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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.