Finding the Fourth Proportional to 968,975,568.99, 1,337,009,899.94 and 545,523,380.19
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Solution
The fourth proportional to 968,975,568.99, 1,337,009,899.94 and 545,523,380.19 is: 752,722,961.55
Step by Step Solution
- Step 1: Write the proportion equation
968,975,568.99 : 1,337,009,899.94 = 545,523,380.19 : x - Step 2: Convert to fraction form
968,975,568.99/1,337,009,899.94 = 545,523,380.19/x - Step 3: Cross multiply
968,975,568.99x = 1,337,009,899.94 × 545,523,380.19 - Step 4: Simplify right side
968,975,568.99x = 729,370,159,960,034,944 - Step 5: Solve for x
x = 729,370,159,960,034,944/968,975,568.99 - Step 6: Final answer
x = 752,722,961.55
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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.