Finding the Fourth Proportional to 197,816,835.76, 272,736,354.99 and 141,369,002.53
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Solution
The fourth proportional to 197,816,835.76, 272,736,354.99 and 141,369,002.53 is: 194,909,934.29
Step by Step Solution
- Step 1: Write the proportion equation
197,816,835.76 : 272,736,354.99 = 141,369,002.53 : x - Step 2: Convert to fraction form
197,816,835.76/272,736,354.99 = 141,369,002.53/x - Step 3: Cross multiply
197,816,835.76x = 272,736,354.99 × 141,369,002.53 - Step 4: Simplify right side
197,816,835.76x = 38,556,466,458,452,576 - Step 5: Solve for x
x = 38,556,466,458,452,576/197,816,835.76 - Step 6: Final answer
x = 194,909,934.29
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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.