Finding the Fourth Proportional to 1,574,869,673.58, 2,173,382,305.92 and 905,813,645.10
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Solution
The fourth proportional to 1,574,869,673.58, 2,173,382,305.92 and 905,813,645.10 is: 1,250,058,580.56
Step by Step Solution
- Step 1: Write the proportion equation
1,574,869,673.58 : 2,173,382,305.92 = 905,813,645.10 : x - Step 2: Convert to fraction form
1,574,869,673.58/2,173,382,305.92 = 905,813,645.10/x - Step 3: Cross multiply
1,574,869,673.58x = 2,173,382,305.92 × 905,813,645.10 - Step 4: Simplify right side
1,574,869,673.58x = 1,968,679,348,721,238,528 - Step 5: Solve for x
x = 1,968,679,348,721,238,528/1,574,869,673.58 - Step 6: Final answer
x = 1,250,058,580.56
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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.