Finding the Fourth Proportional to 912,962,164.74, 1,259,781,498.37 and 511,097,918.99
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Solution
The fourth proportional to 912,962,164.74, 1,259,781,498.37 and 511,097,918.99 is: 705,255,625.11
Step by Step Solution
- Step 1: Write the proportion equation
912,962,164.74 : 1,259,781,498.37 = 511,097,918.99 : x - Step 2: Convert to fraction form
912,962,164.74/1,259,781,498.37 = 511,097,918.99/x - Step 3: Cross multiply
912,962,164.74x = 1,259,781,498.37 × 511,097,918.99 - Step 4: Simplify right side
912,962,164.74x = 643,871,702,193,325,568 - Step 5: Solve for x
x = 643,871,702,193,325,568/912,962,164.74 - Step 6: Final answer
x = 705,255,625.11
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Double scale
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1.5x scale
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.