Finding the Fourth Proportional to 2,808,111,352.80, 4,212,167,029.20 and 1,430,616,280.80
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Solution
The fourth proportional to 2,808,111,352.80, 4,212,167,029.20 and 1,430,616,280.80 is: 2,145,924,421.20
Step by Step Solution
- Step 1: Write the proportion equation
2,808,111,352.80 : 4,212,167,029.20 = 1,430,616,280.80 : x - Step 2: Convert to fraction form
2,808,111,352.80/4,212,167,029.20 = 1,430,616,280.80/x - Step 3: Cross multiply
2,808,111,352.80x = 4,212,167,029.20 × 1,430,616,280.80 - Step 4: Simplify right side
2,808,111,352.80x = 6,025,994,729,422,488,576 - Step 5: Solve for x
x = 6,025,994,729,422,488,576/2,808,111,352.80 - Step 6: Final answer
x = 2,145,924,421.20
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1.5x scale
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.