Finding the Fourth Proportional to 648,255,078.99, 894,257,242.86 and 439,339,775.31
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Solution
The fourth proportional to 648,255,078.99, 894,257,242.86 and 439,339,775.31 is: 606,062,009.97
Step by Step Solution
- Step 1: Write the proportion equation
648,255,078.99 : 894,257,242.86 = 439,339,775.31 : x - Step 2: Convert to fraction form
648,255,078.99/894,257,242.86 = 439,339,775.31/x - Step 3: Cross multiply
648,255,078.99x = 894,257,242.86 × 439,339,775.31 - Step 4: Simplify right side
648,255,078.99x = 392,882,776,147,452,480 - Step 5: Solve for x
x = 392,882,776,147,452,480/648,255,078.99 - Step 6: Final answer
x = 606,062,009.97
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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.