Finding the Fourth Proportional to 125,239,911.58, 172,825,222.53 and 69,484,738.61
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Solution
The fourth proportional to 125,239,911.58, 172,825,222.53 and 69,484,738.61 is: 95,885,690.59
Step by Step Solution
- Step 1: Write the proportion equation
125,239,911.58 : 172,825,222.53 = 69,484,738.61 : x - Step 2: Convert to fraction form
125,239,911.58/172,825,222.53 = 69,484,738.61/x - Step 3: Cross multiply
125,239,911.58x = 172,825,222.53 × 69,484,738.61 - Step 4: Simplify right side
125,239,911.58x = 12,008,715,411,587,440 - Step 5: Solve for x
x = 12,008,715,411,587,440/125,239,911.58 - Step 6: Final answer
x = 95,885,690.59
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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.