Finding the Fourth Proportional to 1,420,507,670.40, 2,130,761,505.60 and 1,311,668,553.60
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Solution
The fourth proportional to 1,420,507,670.40, 2,130,761,505.60 and 1,311,668,553.60 is: 1,967,502,830.40
Step by Step Solution
- Step 1: Write the proportion equation
1,420,507,670.40 : 2,130,761,505.60 = 1,311,668,553.60 : x - Step 2: Convert to fraction form
1,420,507,670.40/2,130,761,505.60 = 1,311,668,553.60/x - Step 3: Cross multiply
1,420,507,670.40x = 2,130,761,505.60 × 1,311,668,553.60 - Step 4: Simplify right side
1,420,507,670.40x = 2,794,852,862,116,910,080 - Step 5: Solve for x
x = 2,794,852,862,116,910,080/1,420,507,670.40 - Step 6: Final answer
x = 1,967,502,830.40
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.