Finding the Fourth Proportional to 489,909,683.12, 676,074,179.00 and 266,893,197.36
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Solution
The fourth proportional to 489,909,683.12, 676,074,179.00 and 266,893,197.36 is: 368,311,967.50
Step by Step Solution
- Step 1: Write the proportion equation
489,909,683.12 : 676,074,179.00 = 266,893,197.36 : x - Step 2: Convert to fraction form
489,909,683.12/676,074,179.00 = 266,893,197.36/x - Step 3: Cross multiply
489,909,683.12x = 676,074,179.00 × 266,893,197.36 - Step 4: Simplify right side
489,909,683.12x = 180,439,599,284,512,512 - Step 5: Solve for x
x = 180,439,599,284,512,512/489,909,683.12 - Step 6: Final answer
x = 368,311,967.50
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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.