Finding the Fourth Proportional to 1,064,485,862.90, 1,597,923,187.95 and 823,218,355.70
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Solution
The fourth proportional to 1,064,485,862.90, 1,597,923,187.95 and 823,218,355.70 is: 1,235,751,215.84
Step by Step Solution
- Step 1: Write the proportion equation
1,064,485,862.90 : 1,597,923,187.95 = 823,218,355.70 : x - Step 2: Convert to fraction form
1,064,485,862.90/1,597,923,187.95 = 823,218,355.70/x - Step 3: Cross multiply
1,064,485,862.90x = 1,597,923,187.95 × 823,218,355.70 - Step 4: Simplify right side
1,064,485,862.90x = 1,315,439,699,319,101,184 - Step 5: Solve for x
x = 1,315,439,699,319,101,184/1,064,485,862.90 - Step 6: Final answer
x = 1,235,751,215.84
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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.