Finding the Fourth Proportional to 647,404,342.37, 893,214,026.91 and 396,246,903.65
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Solution
The fourth proportional to 647,404,342.37, 893,214,026.91 and 396,246,903.65 is: 546,695,888.95
Step by Step Solution
- Step 1: Write the proportion equation
647,404,342.37 : 893,214,026.91 = 396,246,903.65 : x - Step 2: Convert to fraction form
647,404,342.37/893,214,026.91 = 396,246,903.65/x - Step 3: Cross multiply
647,404,342.37x = 893,214,026.91 × 396,246,903.65 - Step 4: Simplify right side
647,404,342.37x = 353,933,292,459,835,264 - Step 5: Solve for x
x = 353,933,292,459,835,264/647,404,342.37 - Step 6: Final answer
x = 546,695,888.95
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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.