Finding the Fourth Proportional to 688,707,635.68, 950,408,682.96 and 375,434,938.72
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Solution
The fourth proportional to 688,707,635.68, 950,408,682.96 and 375,434,938.72 is: 518,095,933.83
Step by Step Solution
- Step 1: Write the proportion equation
688,707,635.68 : 950,408,682.96 = 375,434,938.72 : x - Step 2: Convert to fraction form
688,707,635.68/950,408,682.96 = 375,434,938.72/x - Step 3: Cross multiply
688,707,635.68x = 950,408,682.96 × 375,434,938.72 - Step 4: Simplify right side
688,707,635.68x = 356,816,625,646,043,520 - Step 5: Solve for x
x = 356,816,625,646,043,520/688,707,635.68 - Step 6: Final answer
x = 518,095,933.83
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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.