Finding the Fourth Proportional to 665,078,726.81, 917,840,632.43 and 367,715,466.65
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Solution
The fourth proportional to 665,078,726.81, 917,840,632.43 and 367,715,466.65 is: 507,465,030.62
Step by Step Solution
- Step 1: Write the proportion equation
665,078,726.81 : 917,840,632.43 = 367,715,466.65 : x - Step 2: Convert to fraction form
665,078,726.81/917,840,632.43 = 367,715,466.65/x - Step 3: Cross multiply
665,078,726.81x = 917,840,632.43 × 367,715,466.65 - Step 4: Simplify right side
665,078,726.81x = 337,504,196,464,328,512 - Step 5: Solve for x
x = 337,504,196,464,328,512/665,078,726.81 - Step 6: Final answer
x = 507,465,030.62
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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.