Finding the Fourth Proportional to 56,338,945.40, 84,571,403.70 and 43,615,854.20
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Solution
The fourth proportional to 56,338,945.40, 84,571,403.70 and 43,615,854.20 is: 65,472,542.79
Step by Step Solution
- Step 1: Write the proportion equation
56,338,945.40 : 84,571,403.70 = 43,615,854.20 : x - Step 2: Convert to fraction form
56,338,945.40/84,571,403.70 = 43,615,854.20/x - Step 3: Cross multiply
56,338,945.40x = 84,571,403.70 × 43,615,854.20 - Step 4: Simplify right side
56,338,945.40x = 3,688,654,013,268,541 - Step 5: Solve for x
x = 3,688,654,013,268,541/56,338,945.40 - Step 6: Final answer
x = 65,472,542.79
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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.