Finding the Fourth Proportional to 1,087,769,918.40, 1,631,652,836.16 and 340,842,868.80
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Solution
The fourth proportional to 1,087,769,918.40, 1,631,652,836.16 and 340,842,868.80 is: 511,263,663.53
Step by Step Solution
- Step 1: Write the proportion equation
1,087,769,918.40 : 1,631,652,836.16 = 340,842,868.80 : x - Step 2: Convert to fraction form
1,087,769,918.40/1,631,652,836.16 = 340,842,868.80/x - Step 3: Cross multiply
1,087,769,918.40x = 1,631,652,836.16 × 340,842,868.80 - Step 4: Simplify right side
1,087,769,918.40x = 556,137,233,562,430,848 - Step 5: Solve for x
x = 556,137,233,562,430,848/1,087,769,918.40 - Step 6: Final answer
x = 511,263,663.53
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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.