Finding the Fourth Proportional to 30,610,471.95, 45,915,422.93 and 12,410,340.99
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Solution
The fourth proportional to 30,610,471.95, 45,915,422.93 and 12,410,340.99 is: 18,615,395.94
Step by Step Solution
- Step 1: Write the proportion equation
30,610,471.95 : 45,915,422.93 = 12,410,340.99 : x - Step 2: Convert to fraction form
30,610,471.95/45,915,422.93 = 12,410,340.99/x - Step 3: Cross multiply
30,610,471.95x = 45,915,422.93 × 12,410,340.99 - Step 4: Simplify right side
30,610,471.95x = 569,826,055,261,364.88 - Step 5: Solve for x
x = 569,826,055,261,364.88/30,610,471.95 - Step 6: Final answer
x = 18,615,395.94
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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.