Finding the Fourth Proportional to 249,696,003.80, 374,544,005.70 and 128,763,651.80
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Solution
The fourth proportional to 249,696,003.80, 374,544,005.70 and 128,763,651.80 is: 193,145,477.70
Step by Step Solution
- Step 1: Write the proportion equation
249,696,003.80 : 374,544,005.70 = 128,763,651.80 : x - Step 2: Convert to fraction form
249,696,003.80/374,544,005.70 = 128,763,651.80/x - Step 3: Cross multiply
249,696,003.80x = 374,544,005.70 × 128,763,651.80 - Step 4: Simplify right side
249,696,003.80x = 48,227,653,933,732,016 - Step 5: Solve for x
x = 48,227,653,933,732,016/249,696,003.80 - Step 6: Final answer
x = 193,145,477.70
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1.5x scale
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.