Finding the Fourth Proportional to 446,943,373.12, 616,432,440 and 290,360,930.68
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Solution
The fourth proportional to 446,943,373.12, 616,432,440 and 290,360,930.68 is: 400,471,083.69
Step by Step Solution
- Step 1: Write the proportion equation
446,943,373.12 : 616,432,440 = 290,360,930.68 : x - Step 2: Convert to fraction form
446,943,373.12/616,432,440 = 290,360,930.68/x - Step 3: Cross multiply
446,943,373.12x = 616,432,440 × 290,360,930.68 - Step 4: Simplify right side
446,943,373.12x = 178,987,896,979,743,264 - Step 5: Solve for x
x = 178,987,896,979,743,264/446,943,373.12 - Step 6: Final answer
x = 400,471,083.69
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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.