Finding the Fourth Proportional to 98,173,306.68, 135,479,573.84 and 54,119,338.53
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Solution
The fourth proportional to 98,173,306.68, 135,479,573.84 and 54,119,338.53 is: 74,684,913.53
Step by Step Solution
- Step 1: Write the proportion equation
98,173,306.68 : 135,479,573.84 = 54,119,338.53 : x - Step 2: Convert to fraction form
98,173,306.68/135,479,573.84 = 54,119,338.53/x - Step 3: Cross multiply
98,173,306.68x = 135,479,573.84 × 54,119,338.53 - Step 4: Simplify right side
98,173,306.68x = 7,332,064,920,547,092 - Step 5: Solve for x
x = 7,332,064,920,547,092/98,173,306.68 - Step 6: Final answer
x = 74,684,913.53
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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.