Finding the Fourth Proportional to 2,808,166,556.16, 3,875,391,663.74 and 1,555,103,412.05
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Solution
The fourth proportional to 2,808,166,556.16, 3,875,391,663.74 and 1,555,103,412.05 is: 2,146,110,167.89
Step by Step Solution
- Step 1: Write the proportion equation
2,808,166,556.16 : 3,875,391,663.74 = 1,555,103,412.05 : x - Step 2: Convert to fraction form
2,808,166,556.16/3,875,391,663.74 = 1,555,103,412.05/x - Step 3: Cross multiply
2,808,166,556.16x = 3,875,391,663.74 × 1,555,103,412.05 - Step 4: Simplify right side
2,808,166,556.16x = 6,026,634,799,316,857,856 - Step 5: Solve for x
x = 6,026,634,799,316,857,856/2,808,166,556.16 - Step 6: Final answer
x = 2,146,110,167.89
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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.