Finding the Fourth Proportional to 125,981,557.12, 173,854,547.40 and 68,034,805.12
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Solution
The fourth proportional to 125,981,557.12, 173,854,547.40 and 68,034,805.12 is: 93,888,030.30
Step by Step Solution
- Step 1: Write the proportion equation
125,981,557.12 : 173,854,547.40 = 68,034,805.12 : x - Step 2: Convert to fraction form
125,981,557.12/173,854,547.40 = 68,034,805.12/x - Step 3: Cross multiply
125,981,557.12x = 173,854,547.40 × 68,034,805.12 - Step 4: Simplify right side
125,981,557.12x = 11,828,160,251,584,804 - Step 5: Solve for x
x = 11,828,160,251,584,804/125,981,557.12 - Step 6: Final answer
x = 93,888,030.30
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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.