Finding the Fourth Proportional to 579,149,259.48, 799,178,428.62 and 340,956,615.96
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Solution
The fourth proportional to 579,149,259.48, 799,178,428.62 and 340,956,615.96 is: 470,492,136.72
Step by Step Solution
- Step 1: Write the proportion equation
579,149,259.48 : 799,178,428.62 = 340,956,615.96 : x - Step 2: Convert to fraction form
579,149,259.48/799,178,428.62 = 340,956,615.96/x - Step 3: Cross multiply
579,149,259.48x = 799,178,428.62 × 340,956,615.96 - Step 4: Simplify right side
579,149,259.48x = 272,485,172,570,505,600 - Step 5: Solve for x
x = 272,485,172,570,505,600/579,149,259.48 - Step 6: Final answer
x = 470,492,136.72
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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.