Finding the Fourth Proportional to 130,283,326.20, 195,424,989.30 and 66,449,623.80
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Solution
The fourth proportional to 130,283,326.20, 195,424,989.30 and 66,449,623.80 is: 99,674,435.70
Step by Step Solution
- Step 1: Write the proportion equation
130,283,326.20 : 195,424,989.30 = 66,449,623.80 : x - Step 2: Convert to fraction form
130,283,326.20/195,424,989.30 = 66,449,623.80/x - Step 3: Cross multiply
130,283,326.20x = 195,424,989.30 × 66,449,623.80 - Step 4: Simplify right side
130,283,326.20x = 12,985,917,020,104,026 - Step 5: Solve for x
x = 12,985,917,020,104,026/130,283,326.20 - Step 6: Final answer
x = 99,674,435.70
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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.