Finding the Fourth Proportional to 1,038,623,974.80, 1,558,227,221.54 and 417,275,525.08
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Solution
The fourth proportional to 1,038,623,974.80, 1,558,227,221.54 and 417,275,525.08 is: 626,030,303.40
Step by Step Solution
- Step 1: Write the proportion equation
1,038,623,974.80 : 1,558,227,221.54 = 417,275,525.08 : x - Step 2: Convert to fraction form
1,038,623,974.80/1,558,227,221.54 = 417,275,525.08/x - Step 3: Cross multiply
1,038,623,974.80x = 1,558,227,221.54 × 417,275,525.08 - Step 4: Simplify right side
1,038,623,974.80x = 650,210,082,062,052,992 - Step 5: Solve for x
x = 650,210,082,062,052,992/1,038,623,974.80 - Step 6: Final answer
x = 626,030,303.40
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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.