Finding the Fourth Proportional to 122,407,681.92, 168,915,994.43 and 70,198,918.08
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Solution
The fourth proportional to 122,407,681.92, 168,915,994.43 and 70,198,918.08 is: 96,870,718.15
Step by Step Solution
- Step 1: Write the proportion equation
122,407,681.92 : 168,915,994.43 = 70,198,918.08 : x - Step 2: Convert to fraction form
122,407,681.92/168,915,994.43 = 70,198,918.08/x - Step 3: Cross multiply
122,407,681.92x = 168,915,994.43 × 70,198,918.08 - Step 4: Simplify right side
122,407,681.92x = 11,857,720,055,042,312 - Step 5: Solve for x
x = 11,857,720,055,042,312/122,407,681.92 - Step 6: Final answer
x = 96,870,718.15
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.