Finding the Fourth Proportional to 319,440,460.84, 440,827,835.70 and 172,762,744.84
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Solution
The fourth proportional to 319,440,460.84, 440,827,835.70 and 172,762,744.84 is: 238,412,587.74
Step by Step Solution
- Step 1: Write the proportion equation
319,440,460.84 : 440,827,835.70 = 172,762,744.84 : x - Step 2: Convert to fraction form
319,440,460.84/440,827,835.70 = 172,762,744.84/x - Step 3: Cross multiply
319,440,460.84x = 440,827,835.70 × 172,762,744.84 - Step 4: Simplify right side
319,440,460.84x = 76,158,626,897,408,544 - Step 5: Solve for x
x = 76,158,626,897,408,544/319,440,460.84 - Step 6: Final answer
x = 238,412,587.74
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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.