Finding the Fourth Proportional to 155,990,185.02, 215,490,681.99 and 124,587,004.23
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Solution
The fourth proportional to 155,990,185.02, 215,490,681.99 and 124,587,004.23 is: 172,109,152.29
Step by Step Solution
- Step 1: Write the proportion equation
155,990,185.02 : 215,490,681.99 = 124,587,004.23 : x - Step 2: Convert to fraction form
155,990,185.02/215,490,681.99 = 124,587,004.23/x - Step 3: Cross multiply
155,990,185.02x = 215,490,681.99 × 124,587,004.23 - Step 4: Simplify right side
155,990,185.02x = 26,847,338,508,613,716 - Step 5: Solve for x
x = 26,847,338,508,613,716/155,990,185.02 - Step 6: Final answer
x = 172,109,152.29
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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.