Finding the Fourth Proportional to 1,435,408,235.68, 1,980,864,233.04 and 775,358,805.28
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Solution
The fourth proportional to 1,435,408,235.68, 1,980,864,233.04 and 775,358,805.28 is: 1,069,995,620.04
Step by Step Solution
- Step 1: Write the proportion equation
1,435,408,235.68 : 1,980,864,233.04 = 775,358,805.28 : x - Step 2: Convert to fraction form
1,435,408,235.68/1,980,864,233.04 = 775,358,805.28/x - Step 3: Cross multiply
1,435,408,235.68x = 1,980,864,233.04 × 775,358,805.28 - Step 4: Simplify right side
1,435,408,235.68x = 1,535,880,525,151,777,792 - Step 5: Solve for x
x = 1,535,880,525,151,777,792/1,435,408,235.68 - Step 6: Final answer
x = 1,069,995,620.04
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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.