Finding the Fourth Proportional to 960,867,249.68, 1,325,961,267.72 and 520,824,653.84
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Solution
The fourth proportional to 960,867,249.68, 1,325,961,267.72 and 520,824,653.84 is: 718,718,760.05
Step by Step Solution
- Step 1: Write the proportion equation
960,867,249.68 : 1,325,961,267.72 = 520,824,653.84 : x - Step 2: Convert to fraction form
960,867,249.68/1,325,961,267.72 = 520,824,653.84/x - Step 3: Cross multiply
960,867,249.68x = 1,325,961,267.72 × 520,824,653.84 - Step 4: Simplify right side
960,867,249.68x = 690,593,318,265,516,544 - Step 5: Solve for x
x = 690,593,318,265,516,544/960,867,249.68 - Step 6: Final answer
x = 718,718,760.05
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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.