Finding the Fourth Proportional to 665,126,462.68, 917,442,027.39 and 426,593,826.51
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Solution
The fourth proportional to 665,126,462.68, 917,442,027.39 and 426,593,826.51 is: 588,422,092.68
Step by Step Solution
- Step 1: Write the proportion equation
665,126,462.68 : 917,442,027.39 = 426,593,826.51 : x - Step 2: Convert to fraction form
665,126,462.68/917,442,027.39 = 426,593,826.51/x - Step 3: Cross multiply
665,126,462.68x = 917,442,027.39 × 426,593,826.51 - Step 4: Simplify right side
665,126,462.68x = 391,375,105,065,392,320 - Step 5: Solve for x
x = 391,375,105,065,392,320/665,126,462.68 - Step 6: Final answer
x = 588,422,092.68
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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.