Finding the Fourth Proportional to 83,239,209.87, 124,870,778.51 and 25,735,965.09
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Solution
The fourth proportional to 83,239,209.87, 124,870,778.51 and 25,735,965.09 is: 38,607,646.58
Step by Step Solution
- Step 1: Write the proportion equation
83,239,209.87 : 124,870,778.51 = 25,735,965.09 : x - Step 2: Convert to fraction form
83,239,209.87/124,870,778.51 = 25,735,965.09/x - Step 3: Cross multiply
83,239,209.87x = 124,870,778.51 × 25,735,965.09 - Step 4: Simplify right side
83,239,209.87x = 3,213,669,996,365,802 - Step 5: Solve for x
x = 3,213,669,996,365,802/83,239,209.87 - Step 6: Final answer
x = 38,607,646.58
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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.