Finding the Fourth Proportional to 1,119,749,794.80, 1,679,624,692.20 and 1,038,120,457.20
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Solution
The fourth proportional to 1,119,749,794.80, 1,679,624,692.20 and 1,038,120,457.20 is: 1,557,180,685.80
Step by Step Solution
- Step 1: Write the proportion equation
1,119,749,794.80 : 1,679,624,692.20 = 1,038,120,457.20 : x - Step 2: Convert to fraction form
1,119,749,794.80/1,679,624,692.20 = 1,038,120,457.20/x - Step 3: Cross multiply
1,119,749,794.80x = 1,679,624,692.20 × 1,038,120,457.20 - Step 4: Simplify right side
1,119,749,794.80x = 1,743,652,753,391,073,280 - Step 5: Solve for x
x = 1,743,652,753,391,073,280/1,119,749,794.80 - Step 6: Final answer
x = 1,557,180,685.80
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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.