Finding the Fourth Proportional to 679,722,360,323.74, 938,012,085,445.84 and 371,073,719,335.80
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Solution
The fourth proportional to 679,722,360,323.74, 938,012,085,445.84 and 371,073,719,335.80 is: 512,079,127,664.03
Step by Step Solution
- Step 1: Write the proportion equation
679,722,360,323.74 : 938,012,085,445.84 = 371,073,719,335.80 : x - Step 2: Convert to fraction form
679,722,360,323.74/938,012,085,445.84 = 371,073,719,335.80/x - Step 3: Cross multiply
679,722,360,323.74x = 938,012,085,445.84 × 371,073,719,335.80 - Step 4: Simplify right side
679,722,360,323.74x = 348,071,633,328,318,086,905,856 - Step 5: Solve for x
x = 348,071,633,328,318,086,905,856/679,722,360,323.74 - Step 6: Final answer
x = 512,079,127,664.03
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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.