Finding the Fourth Proportional to 124,724,344.74, 172,120,709.46 and 68,973,537.57
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Solution
The fourth proportional to 124,724,344.74, 172,120,709.46 and 68,973,537.57 is: 95,184,097.74
Step by Step Solution
- Step 1: Write the proportion equation
124,724,344.74 : 172,120,709.46 = 68,973,537.57 : x - Step 2: Convert to fraction form
124,724,344.74/172,120,709.46 = 68,973,537.57/x - Step 3: Cross multiply
124,724,344.74x = 172,120,709.46 × 68,973,537.57 - Step 4: Simplify right side
124,724,344.74x = 11,871,774,220,514,364 - Step 5: Solve for x
x = 11,871,774,220,514,364/124,724,344.74 - Step 6: Final answer
x = 95,184,097.74
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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.