Finding the Fourth Proportional to 2,130,042,053.48, 2,939,401,647.88 and 1,190,252,417.90
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Solution
The fourth proportional to 2,130,042,053.48, 2,939,401,647.88 and 1,190,252,417.90 is: 1,642,516,828.65
Step by Step Solution
- Step 1: Write the proportion equation
2,130,042,053.48 : 2,939,401,647.88 = 1,190,252,417.90 : x - Step 2: Convert to fraction form
2,130,042,053.48/2,939,401,647.88 = 1,190,252,417.90/x - Step 3: Cross multiply
2,130,042,053.48x = 2,939,401,647.88 × 1,190,252,417.90 - Step 4: Simplify right side
2,130,042,053.48x = 3,498,629,918,557,526,528 - Step 5: Solve for x
x = 3,498,629,918,557,526,528/2,130,042,053.48 - Step 6: Final answer
x = 1,642,516,828.65
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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.