Finding the Fourth Proportional to 489,584,307.81, 675,642,926.65 and 266,574,638.42
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Solution
The fourth proportional to 489,584,307.81, 675,642,926.65 and 266,574,638.42 is: 367,882,029.71
Step by Step Solution
- Step 1: Write the proportion equation
489,584,307.81 : 675,642,926.65 = 266,574,638.42 : x - Step 2: Convert to fraction form
489,584,307.81/675,642,926.65 = 266,574,638.42/x - Step 3: Cross multiply
489,584,307.81x = 675,642,926.65 × 266,574,638.42 - Step 4: Simplify right side
489,584,307.81x = 180,109,268,871,741,824 - Step 5: Solve for x
x = 180,109,268,871,741,824/489,584,307.81 - Step 6: Final answer
x = 367,882,029.71
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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.