Finding the Fourth Proportional to 1,294,021,310.40, 1,941,031,965.60 and 926,689,291.20
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Solution
The fourth proportional to 1,294,021,310.40, 1,941,031,965.60 and 926,689,291.20 is: 1,390,033,936.80
Step by Step Solution
- Step 1: Write the proportion equation
1,294,021,310.40 : 1,941,031,965.60 = 926,689,291.20 : x - Step 2: Convert to fraction form
1,294,021,310.40/1,941,031,965.60 = 926,689,291.20/x - Step 3: Cross multiply
1,294,021,310.40x = 1,941,031,965.60 × 926,689,291.20 - Step 4: Simplify right side
1,294,021,310.40x = 1,798,733,536,398,406,912 - Step 5: Solve for x
x = 1,798,733,536,398,406,912/1,294,021,310.40 - Step 6: Final answer
x = 1,390,033,936.80
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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.