Finding the Fourth Proportional to 138,962,579.18, 208,445,642.68 and 36,725,733.50
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Solution
The fourth proportional to 138,962,579.18, 208,445,642.68 and 36,725,733.50 is: 55,089,069.07
Step by Step Solution
- Step 1: Write the proportion equation
138,962,579.18 : 208,445,642.68 = 36,725,733.50 : x - Step 2: Convert to fraction form
138,962,579.18/208,445,642.68 = 36,725,733.50/x - Step 3: Cross multiply
138,962,579.18x = 208,445,642.68 × 36,725,733.50 - Step 4: Simplify right side
138,962,579.18x = 7,655,319,122,301,906 - Step 5: Solve for x
x = 7,655,319,122,301,906/138,962,579.18 - Step 6: Final answer
x = 55,089,069.07
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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.