Finding the Fourth Proportional to 782,446,987.08, 1,079,801,141.49 and 430,016,573.52
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Solution
The fourth proportional to 782,446,987.08, 1,079,801,141.49 and 430,016,573.52 is: 593,436,225.86
Step by Step Solution
- Step 1: Write the proportion equation
782,446,987.08 : 1,079,801,141.49 = 430,016,573.52 : x - Step 2: Convert to fraction form
782,446,987.08/1,079,801,141.49 = 430,016,573.52/x - Step 3: Cross multiply
782,446,987.08x = 1,079,801,141.49 × 430,016,573.52 - Step 4: Simplify right side
782,446,987.08x = 464,332,386,946,514,496 - Step 5: Solve for x
x = 464,332,386,946,514,496/782,446,987.08 - Step 6: Final answer
x = 593,436,225.86
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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.