Finding the Fourth Proportional to 1,038,623,973.80, 1,558,227,220.04 and 417,275,524.08
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Solution
The fourth proportional to 1,038,623,973.80, 1,558,227,220.04 and 417,275,524.08 is: 626,030,301.90
Step by Step Solution
- Step 1: Write the proportion equation
1,038,623,973.80 : 1,558,227,220.04 = 417,275,524.08 : x - Step 2: Convert to fraction form
1,038,623,973.80/1,558,227,220.04 = 417,275,524.08/x - Step 3: Cross multiply
1,038,623,973.80x = 1,558,227,220.04 × 417,275,524.08 - Step 4: Simplify right side
1,038,623,973.80x = 650,210,079,876,577,152 - Step 5: Solve for x
x = 650,210,079,876,577,152/1,038,623,973.80 - Step 6: Final answer
x = 626,030,301.90
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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.