Finding the Fourth Proportional to 3,121,125,492.77, 4,678,411,005.07 and 1,050,128,259.29
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Solution
The fourth proportional to 3,121,125,492.77, 4,678,411,005.07 and 1,050,128,259.29 is: 1,574,089,736.65
Step by Step Solution
- Step 1: Write the proportion equation
3,121,125,492.77 : 4,678,411,005.07 = 1,050,128,259.29 : x - Step 2: Convert to fraction form
3,121,125,492.77/4,678,411,005.07 = 1,050,128,259.29/x - Step 3: Cross multiply
3,121,125,492.77x = 4,678,411,005.07 × 1,050,128,259.29 - Step 4: Simplify right side
3,121,125,492.77x = 4,912,931,604,971,425,792 - Step 5: Solve for x
x = 4,912,931,604,971,425,792/3,121,125,492.77 - Step 6: Final answer
x = 1,574,089,736.65
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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.