Finding the Fourth Proportional to 409,681,173.96, 565,411,665.21 and 268,670,980.98
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Solution
The fourth proportional to 409,681,173.96, 565,411,665.21 and 268,670,980.98 is: 370,799,822.90
Step by Step Solution
- Step 1: Write the proportion equation
409,681,173.96 : 565,411,665.21 = 268,670,980.98 : x - Step 2: Convert to fraction form
409,681,173.96/565,411,665.21 = 268,670,980.98/x - Step 3: Cross multiply
409,681,173.96x = 565,411,665.21 × 268,670,980.98 - Step 4: Simplify right side
409,681,173.96x = 151,909,706,749,506,048 - Step 5: Solve for x
x = 151,909,706,749,506,048/409,681,173.96 - Step 6: Final answer
x = 370,799,822.90
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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.