Finding the Fourth Proportional to 245,366,949.87, 338,600,941.35 and 135,358,633.71
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Solution
The fourth proportional to 245,366,949.87, 338,600,941.35 and 135,358,633.71 is: 186,791,908.28
Step by Step Solution
- Step 1: Write the proportion equation
245,366,949.87 : 338,600,941.35 = 135,358,633.71 : x - Step 2: Convert to fraction form
245,366,949.87/338,600,941.35 = 135,358,633.71/x - Step 3: Cross multiply
245,366,949.87x = 338,600,941.35 × 135,358,633.71 - Step 4: Simplify right side
245,366,949.87x = 45,832,560,794,055,848 - Step 5: Solve for x
x = 45,832,560,794,055,848/245,366,949.87 - Step 6: Final answer
x = 186,791,908.28
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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.