Finding the Fourth Proportional to 2,587,214,483.35, 3,880,821,281.85 and 817,827,287.99
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Solution
The fourth proportional to 2,587,214,483.35, 3,880,821,281.85 and 817,827,287.99 is: 1,226,740,791.89
Step by Step Solution
- Step 1: Write the proportion equation
2,587,214,483.35 : 3,880,821,281.85 = 817,827,287.99 : x - Step 2: Convert to fraction form
2,587,214,483.35/3,880,821,281.85 = 817,827,287.99/x - Step 3: Cross multiply
2,587,214,483.35x = 3,880,821,281.85 × 817,827,287.99 - Step 4: Simplify right side
2,587,214,483.35x = 3,173,841,544,089,857,024 - Step 5: Solve for x
x = 3,173,841,544,089,857,024/2,587,214,483.35 - Step 6: Final answer
x = 1,226,740,791.89
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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.