Finding the Fourth Proportional to 1,403,910,332.90, 1,939,414,289.04 and 1,121,281,705.26
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Solution
The fourth proportional to 1,403,910,332.90, 1,939,414,289.04 and 1,121,281,705.26 is: 1,548,980,522.66
Step by Step Solution
- Step 1: Write the proportion equation
1,403,910,332.90 : 1,939,414,289.04 = 1,121,281,705.26 : x - Step 2: Convert to fraction form
1,403,910,332.90/1,939,414,289.04 = 1,121,281,705.26/x - Step 3: Cross multiply
1,403,910,332.90x = 1,939,414,289.04 × 1,121,281,705.26 - Step 4: Simplify right side
1,403,910,332.90x = 2,174,629,761,220,381,696 - Step 5: Solve for x
x = 2,174,629,761,220,381,696/1,403,910,332.90 - Step 6: Final answer
x = 1,548,980,522.66
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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.