Finding the Fourth Proportional to 974,480,367.80, 1,461,720,551.70 and 756,802,134.20
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Solution
The fourth proportional to 974,480,367.80, 1,461,720,551.70 and 756,802,134.20 is: 1,135,203,201.30
Step by Step Solution
- Step 1: Write the proportion equation
974,480,367.80 : 1,461,720,551.70 = 756,802,134.20 : x - Step 2: Convert to fraction form
974,480,367.80/1,461,720,551.70 = 756,802,134.20/x - Step 3: Cross multiply
974,480,367.80x = 1,461,720,551.70 × 756,802,134.20 - Step 4: Simplify right side
974,480,367.80x = 1,106,233,233,130,561,536 - Step 5: Solve for x
x = 1,106,233,233,130,561,536/974,480,367.80 - Step 6: Final answer
x = 1,135,203,201.30
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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.