Finding the Fourth Proportional to 245,636,659.35, 338,980,228.70 and 134,128,274.42
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Solution
The fourth proportional to 245,636,659.35, 338,980,228.70 and 134,128,274.42 is: 185,097,913.55
Step by Step Solution
- Step 1: Write the proportion equation
245,636,659.35 : 338,980,228.70 = 134,128,274.42 : x - Step 2: Convert to fraction form
245,636,659.35/338,980,228.70 = 134,128,274.42/x - Step 3: Cross multiply
245,636,659.35x = 338,980,228.70 × 134,128,274.42 - Step 4: Simplify right side
245,636,659.35x = 45,466,833,138,204,768 - Step 5: Solve for x
x = 45,466,833,138,204,768/245,636,659.35 - Step 6: Final answer
x = 185,097,913.55
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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.