Finding the Fourth Proportional to 106,638,775.74, 159,950,181.87 and 38,481,465.06
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Solution
The fourth proportional to 106,638,775.74, 159,950,181.87 and 38,481,465.06 is: 57,719,317.31
Step by Step Solution
- Step 1: Write the proportion equation
106,638,775.74 : 159,950,181.87 = 38,481,465.06 : x - Step 2: Convert to fraction form
106,638,775.74/159,950,181.87 = 38,481,465.06/x - Step 3: Cross multiply
106,638,775.74x = 159,950,181.87 × 38,481,465.06 - Step 4: Simplify right side
106,638,775.74x = 6,155,117,334,971,051 - Step 5: Solve for x
x = 6,155,117,334,971,051/106,638,775.74 - Step 6: Final answer
x = 57,719,317.31
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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.