Finding the Fourth Proportional to 298,953,610.10, 448,430,415.15 and 286,039,593.80
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Solution
The fourth proportional to 298,953,610.10, 448,430,415.15 and 286,039,593.80 is: 429,059,390.70
Step by Step Solution
- Step 1: Write the proportion equation
298,953,610.10 : 448,430,415.15 = 286,039,593.80 : x - Step 2: Convert to fraction form
298,953,610.10/448,430,415.15 = 286,039,593.80/x - Step 3: Cross multiply
298,953,610.10x = 448,430,415.15 × 286,039,593.80 - Step 4: Simplify right side
298,953,610.10x = 128,268,853,797,071,360 - Step 5: Solve for x
x = 128,268,853,797,071,360/298,953,610.10 - Step 6: Final answer
x = 429,059,390.70
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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.