Finding the Fourth Proportional to 170,878,430.31, 235,813,365.99 and 92,561,983.74
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Solution
The fourth proportional to 170,878,430.31, 235,813,365.99 and 92,561,983.74 is: 127,736,150.83
Step by Step Solution
- Step 1: Write the proportion equation
170,878,430.31 : 235,813,365.99 = 92,561,983.74 : x - Step 2: Convert to fraction form
170,878,430.31/235,813,365.99 = 92,561,983.74/x - Step 3: Cross multiply
170,878,430.31x = 235,813,365.99 × 92,561,983.74 - Step 4: Simplify right side
170,878,430.31x = 21,827,352,948,441,048 - Step 5: Solve for x
x = 21,827,352,948,441,048/170,878,430.31 - Step 6: Final answer
x = 127,736,150.83
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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.