Finding the Fourth Proportional to 3,078,237,660.99, 4,247,854,167.20 and 1,668,511,356.75
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Solution
The fourth proportional to 3,078,237,660.99, 4,247,854,167.20 and 1,668,511,356.75 is: 2,302,483,986.08
Step by Step Solution
- Step 1: Write the proportion equation
3,078,237,660.99 : 4,247,854,167.20 = 1,668,511,356.75 : x - Step 2: Convert to fraction form
3,078,237,660.99/4,247,854,167.20 = 1,668,511,356.75/x - Step 3: Cross multiply
3,078,237,660.99x = 4,247,854,167.20 × 1,668,511,356.75 - Step 4: Simplify right side
3,078,237,660.99x = 7,087,592,919,782,671,360 - Step 5: Solve for x
x = 7,087,592,919,782,671,360/3,078,237,660.99 - Step 6: Final answer
x = 2,302,483,986.08
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1.5x scale
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.