Finding the Fourth Proportional to 775,989,462.84, 1,070,705,600.46 and 445,900,828.92
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Solution
The fourth proportional to 775,989,462.84, 1,070,705,600.46 and 445,900,828.92 is: 615,251,285.79
Step by Step Solution
- Step 1: Write the proportion equation
775,989,462.84 : 1,070,705,600.46 = 445,900,828.92 : x - Step 2: Convert to fraction form
775,989,462.84/1,070,705,600.46 = 445,900,828.92/x - Step 3: Cross multiply
775,989,462.84x = 1,070,705,600.46 × 445,900,828.92 - Step 4: Simplify right side
775,989,462.84x = 477,428,514,774,400,384 - Step 5: Solve for x
x = 477,428,514,774,400,384/775,989,462.84 - Step 6: Final answer
x = 615,251,285.79
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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.