Finding the Fourth Proportional to 53,892,990.20, 74,372,253.04 and 30,688,117.08
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Solution
The fourth proportional to 53,892,990.20, 74,372,253.04 and 30,688,117.08 is: 42,349,559.75
Step by Step Solution
- Step 1: Write the proportion equation
53,892,990.20 : 74,372,253.04 = 30,688,117.08 : x - Step 2: Convert to fraction form
53,892,990.20/74,372,253.04 = 30,688,117.08/x - Step 3: Cross multiply
53,892,990.20x = 74,372,253.04 × 30,688,117.08 - Step 4: Simplify right side
53,892,990.20x = 2,282,344,408,794,906 - Step 5: Solve for x
x = 2,282,344,408,794,906/53,892,990.20 - Step 6: Final answer
x = 42,349,559.75
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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.