Finding the Fourth Proportional to 292,479,655.04, 403,386,576.88 and 257,121,859.85
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Solution
The fourth proportional to 292,479,655.04, 403,386,576.88 and 257,121,859.85 is: 354,621,270.56
Step by Step Solution
- Step 1: Write the proportion equation
292,479,655.04 : 403,386,576.88 = 257,121,859.85 : x - Step 2: Convert to fraction form
292,479,655.04/403,386,576.88 = 257,121,859.85/x - Step 3: Cross multiply
292,479,655.04x = 403,386,576.88 × 257,121,859.85 - Step 4: Simplify right side
292,479,655.04x = 103,719,506,882,608,064 - Step 5: Solve for x
x = 103,719,506,882,608,064/292,479,655.04 - Step 6: Final answer
x = 354,621,270.56
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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.