Finding the Fourth Proportional to 157,465,129.60, 236,197,694.40 and 99,644,348.80
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Solution
The fourth proportional to 157,465,129.60, 236,197,694.40 and 99,644,348.80 is: 149,466,523.20
Step by Step Solution
- Step 1: Write the proportion equation
157,465,129.60 : 236,197,694.40 = 99,644,348.80 : x - Step 2: Convert to fraction form
157,465,129.60/236,197,694.40 = 99,644,348.80/x - Step 3: Cross multiply
157,465,129.60x = 236,197,694.40 × 99,644,348.80 - Step 4: Simplify right side
157,465,129.60x = 23,535,765,446,549,408 - Step 5: Solve for x
x = 23,535,765,446,549,408/157,465,129.60 - Step 6: Final answer
x = 149,466,523.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.