Finding the Fourth Proportional to 716,519,977.16, 989,102,670.90 and 481,706,820.68
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Solution
The fourth proportional to 716,519,977.16, 989,102,670.90 and 481,706,820.68 is: 664,960,528.82
Step by Step Solution
- Step 1: Write the proportion equation
716,519,977.16 : 989,102,670.90 = 481,706,820.68 : x - Step 2: Convert to fraction form
716,519,977.16/989,102,670.90 = 481,706,820.68/x - Step 3: Cross multiply
716,519,977.16x = 989,102,670.90 × 481,706,820.68 - Step 4: Simplify right side
716,519,977.16x = 476,457,502,925,335,360 - Step 5: Solve for x
x = 476,457,502,925,335,360/716,519,977.16 - Step 6: Final answer
x = 664,960,528.82
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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.