Finding the Fourth Proportional to 992,414,903.80, 1,488,622,355.70 and 409,955,567.80
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Solution
The fourth proportional to 992,414,903.80, 1,488,622,355.70 and 409,955,567.80 is: 614,933,351.70
Step by Step Solution
- Step 1: Write the proportion equation
992,414,903.80 : 1,488,622,355.70 = 409,955,567.80 : x - Step 2: Convert to fraction form
992,414,903.80/1,488,622,355.70 = 409,955,567.80/x - Step 3: Cross multiply
992,414,903.80x = 1,488,622,355.70 × 409,955,567.80 - Step 4: Simplify right side
992,414,903.80x = 610,269,023,070,767,104 - Step 5: Solve for x
x = 610,269,023,070,767,104/992,414,903.80 - Step 6: Final answer
x = 614,933,351.70
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1.5x scale
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.