Finding the Fourth Proportional to 778,305,848.73, 1,074,086,163.23 and 425,896,692.81
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Solution
The fourth proportional to 778,305,848.73, 1,074,086,163.23 and 425,896,692.81 is: 587,750,619.45
Step by Step Solution
- Step 1: Write the proportion equation
778,305,848.73 : 1,074,086,163.23 = 425,896,692.81 : x - Step 2: Convert to fraction form
778,305,848.73/1,074,086,163.23 = 425,896,692.81/x - Step 3: Cross multiply
778,305,848.73x = 1,074,086,163.23 × 425,896,692.81 - Step 4: Simplify right side
778,305,848.73x = 457,449,744,712,638,848 - Step 5: Solve for x
x = 457,449,744,712,638,848/778,305,848.73 - Step 6: Final answer
x = 587,750,619.45
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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.