Finding the Fourth Proportional to 191,947,642.74, 288,038,383.56 and 69,115,686.84
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Solution
The fourth proportional to 191,947,642.74, 288,038,383.56 and 69,115,686.84 is: 103,715,630.12
Step by Step Solution
- Step 1: Write the proportion equation
191,947,642.74 : 288,038,383.56 = 69,115,686.84 : x - Step 2: Convert to fraction form
191,947,642.74/288,038,383.56 = 69,115,686.84/x - Step 3: Cross multiply
191,947,642.74x = 288,038,383.56 × 69,115,686.84 - Step 4: Simplify right side
191,947,642.74x = 19,907,970,716,032,764 - Step 5: Solve for x
x = 19,907,970,716,032,764/191,947,642.74 - Step 6: Final answer
x = 103,715,630.12
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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.