Finding the Fourth Proportional to 427,122,416.64, 589,423,627.32 and 250,926,473.76
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Solution
The fourth proportional to 427,122,416.64, 589,423,627.32 and 250,926,473.76 is: 346,275,415.65
Step by Step Solution
- Step 1: Write the proportion equation
427,122,416.64 : 589,423,627.32 = 250,926,473.76 : x - Step 2: Convert to fraction form
427,122,416.64/589,423,627.32 = 250,926,473.76/x - Step 3: Cross multiply
427,122,416.64x = 589,423,627.32 × 250,926,473.76 - Step 4: Simplify right side
427,122,416.64x = 147,901,992,354,236,000 - Step 5: Solve for x
x = 147,901,992,354,236,000/427,122,416.64 - Step 6: Final answer
x = 346,275,415.65
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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.