Finding the Fourth Proportional to 424,412,931.12, 636,582,929.76 and 258,373,344.48
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Solution
The fourth proportional to 424,412,931.12, 636,582,929.76 and 258,373,344.48 is: 387,537,816.45
Step by Step Solution
- Step 1: Write the proportion equation
424,412,931.12 : 636,582,929.76 = 258,373,344.48 : x - Step 2: Convert to fraction form
424,412,931.12/636,582,929.76 = 258,373,344.48/x - Step 3: Cross multiply
424,412,931.12x = 636,582,929.76 × 258,373,344.48 - Step 4: Simplify right side
424,412,931.12x = 164,476,060,600,968,128 - Step 5: Solve for x
x = 164,476,060,600,968,128/424,412,931.12 - Step 6: Final answer
x = 387,537,816.45
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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.