Finding the Fourth Proportional to 77,117,348.10, 115,671,947.99 and 25,295,124.50
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Solution
The fourth proportional to 77,117,348.10, 115,671,947.99 and 25,295,124.50 is: 37,941,350.38
Step by Step Solution
- Step 1: Write the proportion equation
77,117,348.10 : 115,671,947.99 = 25,295,124.50 : x - Step 2: Convert to fraction form
77,117,348.10/115,671,947.99 = 25,295,124.50/x - Step 3: Cross multiply
77,117,348.10x = 115,671,947.99 × 25,295,124.50 - Step 4: Simplify right side
77,117,348.10x = 2,925,936,324,859,739.50 - Step 5: Solve for x
x = 2,925,936,324,859,739.50/77,117,348.10 - Step 6: Final answer
x = 37,941,350.38
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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.