Finding the Fourth Proportional to 77,031,023.14, 106,124,152.86 and 53,789,336.74
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Solution
The fourth proportional to 77,031,023.14, 106,124,152.86 and 53,789,336.74 is: 74,104,530.38
Step by Step Solution
- Step 1: Write the proportion equation
77,031,023.14 : 106,124,152.86 = 53,789,336.74 : x - Step 2: Convert to fraction form
77,031,023.14/106,124,152.86 = 53,789,336.74/x - Step 3: Cross multiply
77,031,023.14x = 106,124,152.86 × 53,789,336.74 - Step 4: Simplify right side
77,031,023.14x = 5,708,347,794,433,774 - Step 5: Solve for x
x = 5,708,347,794,433,774/77,031,023.14 - Step 6: Final answer
x = 74,104,530.38
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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.