Finding the Fourth Proportional to 557,574,245.60, 769,614,659.98 and 371,934,818.44
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Solution
The fourth proportional to 557,574,245.60, 769,614,659.98 and 371,934,818.44 is: 513,378,247.09
Step by Step Solution
- Step 1: Write the proportion equation
557,574,245.60 : 769,614,659.98 = 371,934,818.44 : x - Step 2: Convert to fraction form
557,574,245.60/769,614,659.98 = 371,934,818.44/x - Step 3: Cross multiply
557,574,245.60x = 769,614,659.98 × 371,934,818.44 - Step 4: Simplify right side
557,574,245.60x = 286,246,488,828,423,648 - Step 5: Solve for x
x = 286,246,488,828,423,648/557,574,245.60 - Step 6: Final answer
x = 513,378,247.09
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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.