Finding the Fourth Proportional to 3,078,237,555.18, 4,247,854,021.30 and 1,668,511,250.87
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Solution
The fourth proportional to 3,078,237,555.18, 4,247,854,021.30 and 1,668,511,250.87 is: 2,302,483,840.03
Step by Step Solution
- Step 1: Write the proportion equation
3,078,237,555.18 : 4,247,854,021.30 = 1,668,511,250.87 : x - Step 2: Convert to fraction form
3,078,237,555.18/4,247,854,021.30 = 1,668,511,250.87/x - Step 3: Cross multiply
3,078,237,555.18x = 4,247,854,021.30 × 1,668,511,250.87 - Step 4: Simplify right side
3,078,237,555.18x = 7,087,592,226,579,191,808 - Step 5: Solve for x
x = 7,087,592,226,579,191,808/3,078,237,555.18 - Step 6: Final answer
x = 2,302,483,840.03
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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.