Finding the Fourth Proportional to 77,292,154.24, 115,938,155.22 and 19,784,333.68
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Solution
The fourth proportional to 77,292,154.24, 115,938,155.22 and 19,784,333.68 is: 29,676,481.03
Step by Step Solution
- Step 1: Write the proportion equation
77,292,154.24 : 115,938,155.22 = 19,784,333.68 : x - Step 2: Convert to fraction form
77,292,154.24/115,938,155.22 = 19,784,333.68/x - Step 3: Cross multiply
77,292,154.24x = 115,938,155.22 × 19,784,333.68 - Step 4: Simplify right side
77,292,154.24x = 2,293,759,149,116,114 - Step 5: Solve for x
x = 2,293,759,149,116,114/77,292,154.24 - Step 6: Final answer
x = 29,676,481.03
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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.