Finding the Fourth Proportional to 1,642,765,670.36, 2,267,127,851.68 and 928,053,339.12
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Solution
The fourth proportional to 1,642,765,670.36, 2,267,127,851.68 and 928,053,339.12 is: 1,280,776,443.61
Step by Step Solution
- Step 1: Write the proportion equation
1,642,765,670.36 : 2,267,127,851.68 = 928,053,339.12 : x - Step 2: Convert to fraction form
1,642,765,670.36/2,267,127,851.68 = 928,053,339.12/x - Step 3: Cross multiply
1,642,765,670.36x = 2,267,127,851.68 × 928,053,339.12 - Step 4: Simplify right side
1,642,765,670.36x = 2,104,015,572,963,576,064 - Step 5: Solve for x
x = 2,104,015,572,963,576,064/1,642,765,670.36 - Step 6: Final answer
x = 1,280,776,443.61
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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.