Finding the Fourth Proportional to 85,901,983.49, 118,664,301.68 and 82,712,848.44
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Solution
The fourth proportional to 85,901,983.49, 118,664,301.68 and 82,712,848.44 is: 114,258,856.45
Step by Step Solution
- Step 1: Write the proportion equation
85,901,983.49 : 118,664,301.68 = 82,712,848.44 : x - Step 2: Convert to fraction form
85,901,983.49/118,664,301.68 = 82,712,848.44/x - Step 3: Cross multiply
85,901,983.49x = 118,664,301.68 × 82,712,848.44 - Step 4: Simplify right side
85,901,983.49x = 9,815,062,399,682,712 - Step 5: Solve for x
x = 9,815,062,399,682,712/85,901,983.49 - Step 6: Final answer
x = 114,258,856.45
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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.