Finding the Fourth Proportional to 124,724,346.99, 172,120,712.55 and 68,973,539.82
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Solution
The fourth proportional to 124,724,346.99, 172,120,712.55 and 68,973,539.82 is: 95,184,100.84
Step by Step Solution
- Step 1: Write the proportion equation
124,724,346.99 : 172,120,712.55 = 68,973,539.82 : x - Step 2: Convert to fraction form
124,724,346.99/172,120,712.55 = 68,973,539.82/x - Step 3: Cross multiply
124,724,346.99x = 172,120,712.55 × 68,973,539.82 - Step 4: Simplify right side
124,724,346.99x = 11,871,774,820,914,198 - Step 5: Solve for x
x = 11,871,774,820,914,198/124,724,346.99 - Step 6: Final answer
x = 95,184,100.84
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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.