Finding the Fourth Proportional to 901,499,368.92, 1,245,236,126.40 and 745,496,634.84
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Solution
The fourth proportional to 901,499,368.92, 1,245,236,126.40 and 745,496,634.84 is: 1,029,750,406.73
Step by Step Solution
- Step 1: Write the proportion equation
901,499,368.92 : 1,245,236,126.40 = 745,496,634.84 : x - Step 2: Convert to fraction form
901,499,368.92/1,245,236,126.40 = 745,496,634.84/x - Step 3: Cross multiply
901,499,368.92x = 1,245,236,126.40 × 745,496,634.84 - Step 4: Simplify right side
901,499,368.92x = 928,319,341,812,397,056 - Step 5: Solve for x
x = 928,319,341,812,397,056/901,499,368.92 - Step 6: Final answer
x = 1,029,750,406.73
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1.5x scale
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.