Finding the Fourth Proportional to 130,771,777.76, 180,429,137.88 and 91,034,775.08
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Solution
The fourth proportional to 130,771,777.76, 180,429,137.88 and 91,034,775.08 is: 125,602,987.63
Step by Step Solution
- Step 1: Write the proportion equation
130,771,777.76 : 180,429,137.88 = 91,034,775.08 : x - Step 2: Convert to fraction form
130,771,777.76/180,429,137.88 = 91,034,775.08/x - Step 3: Cross multiply
130,771,777.76x = 180,429,137.88 × 91,034,775.08 - Step 4: Simplify right side
130,771,777.76x = 16,425,325,984,784,108 - Step 5: Solve for x
x = 16,425,325,984,784,108/130,771,777.76 - Step 6: Final answer
x = 125,602,987.63
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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.