Finding the Fourth Proportional to 518,996,536.08, 716,217,117.84 and 280,841,722.80
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Solution
The fourth proportional to 518,996,536.08, 716,217,117.84 and 280,841,722.80 is: 387,562,604.55
Step by Step Solution
- Step 1: Write the proportion equation
518,996,536.08 : 716,217,117.84 = 280,841,722.80 : x - Step 2: Convert to fraction form
518,996,536.08/716,217,117.84 = 280,841,722.80/x - Step 3: Cross multiply
518,996,536.08x = 716,217,117.84 × 280,841,722.80 - Step 4: Simplify right side
518,996,536.08x = 201,143,649,273,036,224 - Step 5: Solve for x
x = 201,143,649,273,036,224/518,996,536.08 - Step 6: Final answer
x = 387,562,604.55
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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.