Finding the Fourth Proportional to 1,679,620,038.80, 2,519,430,058.20 and 1,271,473,350.80
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Solution
The fourth proportional to 1,679,620,038.80, 2,519,430,058.20 and 1,271,473,350.80 is: 1,907,210,026.20
Step by Step Solution
- Step 1: Write the proportion equation
1,679,620,038.80 : 2,519,430,058.20 = 1,271,473,350.80 : x - Step 2: Convert to fraction form
1,679,620,038.80/2,519,430,058.20 = 1,271,473,350.80/x - Step 3: Cross multiply
1,679,620,038.80x = 2,519,430,058.20 × 1,271,473,350.80 - Step 4: Simplify right side
1,679,620,038.80x = 3,203,388,178,205,792,768 - Step 5: Solve for x
x = 3,203,388,178,205,792,768/1,679,620,038.80 - Step 6: Final answer
x = 1,907,210,026.20
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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.