Finding the Fourth Proportional to 257,540,558.40, 386,178,127.20 and 95,899,291.20
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Solution
The fourth proportional to 257,540,558.40, 386,178,127.20 and 95,899,291.20 is: 143,799,519.99
Step by Step Solution
- Step 1: Write the proportion equation
257,540,558.40 : 386,178,127.20 = 95,899,291.20 : x - Step 2: Convert to fraction form
257,540,558.40/386,178,127.20 = 95,899,291.20/x - Step 3: Cross multiply
257,540,558.40x = 386,178,127.20 × 95,899,291.20 - Step 4: Simplify right side
257,540,558.40x = 37,034,208,675,423,440 - Step 5: Solve for x
x = 37,034,208,675,423,440/257,540,558.40 - Step 6: Final answer
x = 143,799,519.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.