Finding the Fourth Proportional to 124,892,074.19, 172,352,425.99 and 69,138,425.88
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Solution
The fourth proportional to 124,892,074.19, 172,352,425.99 and 69,138,425.88 is: 95,411,782.59
Step by Step Solution
- Step 1: Write the proportion equation
124,892,074.19 : 172,352,425.99 = 69,138,425.88 : x - Step 2: Convert to fraction form
124,892,074.19/172,352,425.99 = 69,138,425.88/x - Step 3: Cross multiply
124,892,074.19x = 172,352,425.99 × 69,138,425.88 - Step 4: Simplify right side
124,892,074.19x = 11,916,175,429,547,800 - Step 5: Solve for x
x = 11,916,175,429,547,800/124,892,074.19 - Step 6: Final answer
x = 95,411,782.59
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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.