Finding the Fourth Proportional to 77,128,002.72, 106,438,483.14 and 44,091,325.68
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Solution
The fourth proportional to 77,128,002.72, 106,438,483.14 and 44,091,325.68 is: 60,847,080.95
Step by Step Solution
- Step 1: Write the proportion equation
77,128,002.72 : 106,438,483.14 = 44,091,325.68 : x - Step 2: Convert to fraction form
77,128,002.72/106,438,483.14 = 44,091,325.68/x - Step 3: Cross multiply
77,128,002.72x = 106,438,483.14 × 44,091,325.68 - Step 4: Simplify right side
77,128,002.72x = 4,693,013,825,010,929 - Step 5: Solve for x
x = 4,693,013,825,010,929/77,128,002.72 - Step 6: Final answer
x = 60,847,080.95
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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.