Finding the Fourth Proportional to 211,430,460.79, 291,776,025.72 and 118,612,960.93
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Solution
The fourth proportional to 211,430,460.79, 291,776,025.72 and 118,612,960.93 is: 163,687,002.38
Step by Step Solution
- Step 1: Write the proportion equation
211,430,460.79 : 291,776,025.72 = 118,612,960.93 : x - Step 2: Convert to fraction form
211,430,460.79/291,776,025.72 = 118,612,960.93/x - Step 3: Cross multiply
211,430,460.79x = 291,776,025.72 × 118,612,960.93 - Step 4: Simplify right side
211,430,460.79x = 34,608,418,339,037,040 - Step 5: Solve for x
x = 34,608,418,339,037,040/211,430,460.79 - Step 6: Final answer
x = 163,687,002.38
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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.