Finding the Fourth Proportional to 122,412,812.27, 168,885,316.29 and 69,458,853.88
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Solution
The fourth proportional to 122,412,812.27, 168,885,316.29 and 69,458,853.88 is: 95,828,045.20
Step by Step Solution
- Step 1: Write the proportion equation
122,412,812.27 : 168,885,316.29 = 69,458,853.88 : x - Step 2: Convert to fraction form
122,412,812.27/168,885,316.29 = 69,458,853.88/x - Step 3: Cross multiply
122,412,812.27x = 168,885,316.29 × 69,458,853.88 - Step 4: Simplify right side
122,412,812.27x = 11,730,580,506,242,480 - Step 5: Solve for x
x = 11,730,580,506,242,480/122,412,812.27 - Step 6: Final answer
x = 95,828,045.20
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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.