Finding the Fourth Proportional to 1,129,442,281.29, 1,556,987,652.63 and 789,294,698.01
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Solution
The fourth proportional to 1,129,442,281.29, 1,556,987,652.63 and 789,294,698.01 is: 1,088,078,708.80
Step by Step Solution
- Step 1: Write the proportion equation
1,129,442,281.29 : 1,556,987,652.63 = 789,294,698.01 : x - Step 2: Convert to fraction form
1,129,442,281.29/1,556,987,652.63 = 789,294,698.01/x - Step 3: Cross multiply
1,129,442,281.29x = 1,556,987,652.63 × 789,294,698.01 - Step 4: Simplify right side
1,129,442,281.29x = 1,228,922,099,087,894,784 - Step 5: Solve for x
x = 1,228,922,099,087,894,784/1,129,442,281.29 - Step 6: Final answer
x = 1,088,078,708.80
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.