Finding the Fourth Proportional to 90,059,605.68, 124,024,494.64 and 84,447,767.36
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Solution
The fourth proportional to 90,059,605.68, 124,024,494.64 and 84,447,767.36 is: 116,296,219.50
Step by Step Solution
- Step 1: Write the proportion equation
90,059,605.68 : 124,024,494.64 = 84,447,767.36 : x - Step 2: Convert to fraction form
90,059,605.68/124,024,494.64 = 84,447,767.36/x - Step 3: Cross multiply
90,059,605.68x = 124,024,494.64 × 84,447,767.36 - Step 4: Simplify right side
90,059,605.68x = 10,473,591,670,300,286 - Step 5: Solve for x
x = 10,473,591,670,300,286/90,059,605.68 - Step 6: Final answer
x = 116,296,219.50
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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.