Finding the Fourth Proportional to 86,814,148.29, 130,193,785.85 and 28,512,220.68
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Solution
The fourth proportional to 86,814,148.29, 130,193,785.85 and 28,512,220.68 is: 42,759,320.07
Step by Step Solution
- Step 1: Write the proportion equation
86,814,148.29 : 130,193,785.85 = 28,512,220.68 : x - Step 2: Convert to fraction form
86,814,148.29/130,193,785.85 = 28,512,220.68/x - Step 3: Cross multiply
86,814,148.29x = 130,193,785.85 × 28,512,220.68 - Step 4: Simplify right side
86,814,148.29x = 3,712,113,953,177,300 - Step 5: Solve for x
x = 3,712,113,953,177,300/86,814,148.29 - Step 6: Final answer
x = 42,759,320.07
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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.