Finding the Fourth Proportional to 121,653,065.19, 167,877,761.62 and 71,416,475.99
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Solution
The fourth proportional to 121,653,065.19, 167,877,761.62 and 71,416,475.99 is: 98,552,700.76
Step by Step Solution
- Step 1: Write the proportion equation
121,653,065.19 : 167,877,761.62 = 71,416,475.99 : x - Step 2: Convert to fraction form
121,653,065.19/167,877,761.62 = 71,416,475.99/x - Step 3: Cross multiply
121,653,065.19x = 167,877,761.62 × 71,416,475.99 - Step 4: Simplify right side
121,653,065.19x = 11,989,238,130,793,202 - Step 5: Solve for x
x = 11,989,238,130,793,202/121,653,065.19 - Step 6: Final answer
x = 98,552,700.76
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.