Finding the Fourth Proportional to 1,535,515,327.28, 2,119,006,554.36 and 830,667,122
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Solution
The fourth proportional to 1,535,515,327.28, 2,119,006,554.36 and 830,667,122 is: 1,146,318,141.37
Step by Step Solution
- Step 1: Write the proportion equation
1,535,515,327.28 : 2,119,006,554.36 = 830,667,122 : x - Step 2: Convert to fraction form
1,535,515,327.28/2,119,006,554.36 = 830,667,122/x - Step 3: Cross multiply
1,535,515,327.28x = 2,119,006,554.36 × 830,667,122 - Step 4: Simplify right side
1,535,515,327.28x = 1,760,189,076,009,357,568 - Step 5: Solve for x
x = 1,760,189,076,009,357,568/1,535,515,327.28 - Step 6: Final answer
x = 1,146,318,141.37
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.