Finding the Fourth Proportional to 76,804,838.10, 115,339,967.55 and 40,973,030.10
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Solution
The fourth proportional to 76,804,838.10, 115,339,967.55 and 40,973,030.10 is: 61,530,342.09
Step by Step Solution
- Step 1: Write the proportion equation
76,804,838.10 : 115,339,967.55 = 40,973,030.10 : x - Step 2: Convert to fraction form
76,804,838.10/115,339,967.55 = 40,973,030.10/x - Step 3: Cross multiply
76,804,838.10x = 115,339,967.55 × 40,973,030.10 - Step 4: Simplify right side
76,804,838.10x = 4,725,827,962,159,173 - Step 5: Solve for x
x = 4,725,827,962,159,173/76,804,838.10 - Step 6: Final answer
x = 61,530,342.09
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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.