Finding the Fourth Proportional to 1,309,179,691.28, 1,806,706,276.08 and 714,502,317.44
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Solution
The fourth proportional to 1,309,179,691.28, 1,806,706,276.08 and 714,502,317.44 is: 986,034,101.96
Step by Step Solution
- Step 1: Write the proportion equation
1,309,179,691.28 : 1,806,706,276.08 = 714,502,317.44 : x - Step 2: Convert to fraction form
1,309,179,691.28/1,806,706,276.08 = 714,502,317.44/x - Step 3: Cross multiply
1,309,179,691.28x = 1,806,706,276.08 × 714,502,317.44 - Step 4: Simplify right side
1,309,179,691.28x = 1,290,895,821,192,552,448 - Step 5: Solve for x
x = 1,290,895,821,192,552,448/1,309,179,691.28 - Step 6: Final answer
x = 986,034,101.96
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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.