Finding the Fourth Proportional to 124,724,345.98, 172,120,711.18 and 68,973,538.81
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Solution
The fourth proportional to 124,724,345.98, 172,120,711.18 and 68,973,538.81 is: 95,184,099.46
Step by Step Solution
- Step 1: Write the proportion equation
124,724,345.98 : 172,120,711.18 = 68,973,538.81 : x - Step 2: Convert to fraction form
124,724,345.98/172,120,711.18 = 68,973,538.81/x - Step 3: Cross multiply
124,724,345.98x = 172,120,711.18 × 68,973,538.81 - Step 4: Simplify right side
124,724,345.98x = 11,871,774,552,578,532 - Step 5: Solve for x
x = 11,871,774,552,578,532/124,724,345.98 - Step 6: Final answer
x = 95,184,099.46
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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.