Finding the Fourth Proportional to 99,864,110.90, 149,796,166.35 and 69,606,139.70
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Solution
The fourth proportional to 99,864,110.90, 149,796,166.35 and 69,606,139.70 is: 104,409,209.55
Step by Step Solution
- Step 1: Write the proportion equation
99,864,110.90 : 149,796,166.35 = 69,606,139.70 : x - Step 2: Convert to fraction form
99,864,110.90/149,796,166.35 = 69,606,139.70/x - Step 3: Cross multiply
99,864,110.90x = 149,796,166.35 × 69,606,139.70 - Step 4: Simplify right side
99,864,110.90x = 10,426,732,881,482,540 - Step 5: Solve for x
x = 10,426,732,881,482,540/99,864,110.90 - Step 6: Final answer
x = 104,409,209.55
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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.