Finding the Fourth Proportional to 1,326,366,980.68, 1,989,554,203.50 and 508,729,911.88
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Solution
The fourth proportional to 1,326,366,980.68, 1,989,554,203.50 and 508,729,911.88 is: 763,096,299.42
Step by Step Solution
- Step 1: Write the proportion equation
1,326,366,980.68 : 1,989,554,203.50 = 508,729,911.88 : x - Step 2: Convert to fraction form
1,326,366,980.68/1,989,554,203.50 = 508,729,911.88/x - Step 3: Cross multiply
1,326,366,980.68x = 1,989,554,203.50 × 508,729,911.88 - Step 4: Simplify right side
1,326,366,980.68x = 1,012,145,734,627,038,592 - Step 5: Solve for x
x = 1,012,145,734,627,038,592/1,326,366,980.68 - Step 6: Final answer
x = 763,096,299.42
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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.