Finding the Fourth Proportional to 708,689,208.58, 1,063,576,392.99 and 320,784,449.70
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Solution
The fourth proportional to 708,689,208.58, 1,063,576,392.99 and 320,784,449.70 is: 481,422,270.59
Step by Step Solution
- Step 1: Write the proportion equation
708,689,208.58 : 1,063,576,392.99 = 320,784,449.70 : x - Step 2: Convert to fraction form
708,689,208.58/1,063,576,392.99 = 320,784,449.70/x - Step 3: Cross multiply
708,689,208.58x = 1,063,576,392.99 × 320,784,449.70 - Step 4: Simplify right side
708,689,208.58x = 341,178,767,939,208,064 - Step 5: Solve for x
x = 341,178,767,939,208,064/708,689,208.58 - Step 6: Final answer
x = 481,422,270.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.