Finding the Fourth Proportional to 3,928,881,371.40, 5,894,251,021.80 and 1,272,933,154.44
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Solution
The fourth proportional to 3,928,881,371.40, 5,894,251,021.80 and 1,272,933,154.44 is: 1,909,700,710.45
Step by Step Solution
- Step 1: Write the proportion equation
3,928,881,371.40 : 5,894,251,021.80 = 1,272,933,154.44 : x - Step 2: Convert to fraction form
3,928,881,371.40/5,894,251,021.80 = 1,272,933,154.44/x - Step 3: Cross multiply
3,928,881,371.40x = 5,894,251,021.80 × 1,272,933,154.44 - Step 4: Simplify right side
3,928,881,371.40x = 7,502,987,546,241,068,032 - Step 5: Solve for x
x = 7,502,987,546,241,068,032/3,928,881,371.40 - Step 6: Final answer
x = 1,909,700,710.45
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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.