Finding the Fourth Proportional to 99,849,207.80, 149,773,811.70 and 93,130,743.80
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Solution
The fourth proportional to 99,849,207.80, 149,773,811.70 and 93,130,743.80 is: 139,696,115.70
Step by Step Solution
- Step 1: Write the proportion equation
99,849,207.80 : 149,773,811.70 = 93,130,743.80 : x - Step 2: Convert to fraction form
99,849,207.80/149,773,811.70 = 93,130,743.80/x - Step 3: Cross multiply
99,849,207.80x = 149,773,811.70 × 93,130,743.80 - Step 4: Simplify right side
99,849,207.80x = 13,948,546,485,382,140 - Step 5: Solve for x
x = 13,948,546,485,382,140/99,849,207.80 - Step 6: Final answer
x = 139,696,115.70
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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.