Finding the Fourth Proportional to 54,138,352.84, 74,704,041.30 and 30,934,981.96
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Solution
The fourth proportional to 54,138,352.84, 74,704,041.30 and 30,934,981.96 is: 42,686,340.62
Step by Step Solution
- Step 1: Write the proportion equation
54,138,352.84 : 74,704,041.30 = 30,934,981.96 : x - Step 2: Convert to fraction form
54,138,352.84/74,704,041.30 = 30,934,981.96/x - Step 3: Cross multiply
54,138,352.84x = 74,704,041.30 × 30,934,981.96 - Step 4: Simplify right side
54,138,352.84x = 2,310,968,169,954,595 - Step 5: Solve for x
x = 2,310,968,169,954,595/54,138,352.84 - Step 6: Final answer
x = 42,686,340.62
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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.