Finding the Fourth Proportional to 2,130,042,068.66, 2,939,401,668.76 and 1,190,252,433.08
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Solution
The fourth proportional to 2,130,042,068.66, 2,939,401,668.76 and 1,190,252,433.08 is: 1,642,516,849.56
Step by Step Solution
- Step 1: Write the proportion equation
2,130,042,068.66 : 2,939,401,668.76 = 1,190,252,433.08 : x - Step 2: Convert to fraction form
2,130,042,068.66/2,939,401,668.76 = 1,190,252,433.08/x - Step 3: Cross multiply
2,130,042,068.66x = 2,939,401,668.76 × 1,190,252,433.08 - Step 4: Simplify right side
2,130,042,068.66x = 3,498,629,988,045,375,488 - Step 5: Solve for x
x = 3,498,629,988,045,375,488/2,130,042,068.66 - Step 6: Final answer
x = 1,642,516,849.56
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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.