Finding the Fourth Proportional to 1,347,991,880.90, 2,021,987,821.35 and 530,130,863.30
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Solution
The fourth proportional to 1,347,991,880.90, 2,021,987,821.35 and 530,130,863.30 is: 795,196,294.95
Step by Step Solution
- Step 1: Write the proportion equation
1,347,991,880.90 : 2,021,987,821.35 = 530,130,863.30 : x - Step 2: Convert to fraction form
1,347,991,880.90/2,021,987,821.35 = 530,130,863.30/x - Step 3: Cross multiply
1,347,991,880.90x = 2,021,987,821.35 × 530,130,863.30 - Step 4: Simplify right side
1,347,991,880.90x = 1,071,918,149,314,361,600 - Step 5: Solve for x
x = 1,071,918,149,314,361,600/1,347,991,880.90 - Step 6: Final answer
x = 795,196,294.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.