Finding the Fourth Proportional to 2,130,042,679.68, 2,939,402,512.06 and 1,190,253,044.10
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Solution
The fourth proportional to 2,130,042,679.68, 2,939,402,512.06 and 1,190,253,044.10 is: 1,642,517,692.81
Step by Step Solution
- Step 1: Write the proportion equation
2,130,042,679.68 : 2,939,402,512.06 = 1,190,253,044.10 : x - Step 2: Convert to fraction form
2,130,042,679.68/2,939,402,512.06 = 1,190,253,044.10/x - Step 3: Cross multiply
2,130,042,679.68x = 2,939,402,512.06 × 1,190,253,044.10 - Step 4: Simplify right side
2,130,042,679.68x = 3,498,632,787,805,273,088 - Step 5: Solve for x
x = 3,498,632,787,805,273,088/2,130,042,679.68 - Step 6: Final answer
x = 1,642,517,692.81
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1.5x scale
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.