Finding the Fourth Proportional to 387,890,659.97, 582,040,289.91 and 224,243,368.53
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Solution
The fourth proportional to 387,890,659.97, 582,040,289.91 and 224,243,368.53 is: 336,483,160.59
Step by Step Solution
- Step 1: Write the proportion equation
387,890,659.97 : 582,040,289.91 = 224,243,368.53 : x - Step 2: Convert to fraction form
387,890,659.97/582,040,289.91 = 224,243,368.53/x - Step 3: Cross multiply
387,890,659.97x = 582,040,289.91 × 224,243,368.53 - Step 4: Simplify right side
387,890,659.97x = 130,518,675,229,596,160 - Step 5: Solve for x
x = 130,518,675,229,596,160/387,890,659.97 - Step 6: Final answer
x = 336,483,160.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.