Finding the Fourth Proportional to 1,391,664,650.04, 2,087,497,566.36 and 409,091,258.34
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Solution
The fourth proportional to 1,391,664,650.04, 2,087,497,566.36 and 409,091,258.34 is: 613,637,061.33
Step by Step Solution
- Step 1: Write the proportion equation
1,391,664,650.04 : 2,087,497,566.36 = 409,091,258.34 : x - Step 2: Convert to fraction form
1,391,664,650.04/2,087,497,566.36 = 409,091,258.34/x - Step 3: Cross multiply
1,391,664,650.04x = 2,087,497,566.36 × 409,091,258.34 - Step 4: Simplify right side
1,391,664,650.04x = 853,977,006,203,899,904 - Step 5: Solve for x
x = 853,977,006,203,899,904/1,391,664,650.04 - Step 6: Final answer
x = 613,637,061.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.