Finding the Fourth Proportional to 210,374,591.99, 290,311,367.94 and 117,555,862.55
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Solution
The fourth proportional to 210,374,591.99, 290,311,367.94 and 117,555,862.55 is: 162,223,978.39
Step by Step Solution
- Step 1: Write the proportion equation
210,374,591.99 : 290,311,367.94 = 117,555,862.55 : x - Step 2: Convert to fraction form
210,374,591.99/290,311,367.94 = 117,555,862.55/x - Step 3: Cross multiply
210,374,591.99x = 290,311,367.94 × 117,555,862.55 - Step 4: Simplify right side
210,374,591.99x = 34,127,803,264,805,560 - Step 5: Solve for x
x = 34,127,803,264,805,560/210,374,591.99 - Step 6: Final answer
x = 162,223,978.39
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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.