Finding the Fourth Proportional to 1,307,823,572.08, 1,805,233,868.58 and 779,353,276.24
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Solution
The fourth proportional to 1,307,823,572.08, 1,805,233,868.58 and 779,353,276.24 is: 1,075,768,138.68
Step by Step Solution
- Step 1: Write the proportion equation
1,307,823,572.08 : 1,805,233,868.58 = 779,353,276.24 : x - Step 2: Convert to fraction form
1,307,823,572.08/1,805,233,868.58 = 779,353,276.24/x - Step 3: Cross multiply
1,307,823,572.08x = 1,805,233,868.58 × 779,353,276.24 - Step 4: Simplify right side
1,307,823,572.08x = 1,406,914,929,857,232,640 - Step 5: Solve for x
x = 1,406,914,929,857,232,640/1,307,823,572.08 - Step 6: Final answer
x = 1,075,768,138.68
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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.