Finding the Fourth Proportional to 697,874,981.19, 963,024,202.94 and 384,591,692.67
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Solution
The fourth proportional to 697,874,981.19, 963,024,202.94 and 384,591,692.67 is: 530,712,689.62
Step by Step Solution
- Step 1: Write the proportion equation
697,874,981.19 : 963,024,202.94 = 384,591,692.67 : x - Step 2: Convert to fraction form
697,874,981.19/963,024,202.94 = 384,591,692.67/x - Step 3: Cross multiply
697,874,981.19x = 963,024,202.94 × 384,591,692.67 - Step 4: Simplify right side
697,874,981.19x = 370,371,108,288,949,248 - Step 5: Solve for x
x = 370,371,108,288,949,248/697,874,981.19 - Step 6: Final answer
x = 530,712,689.62
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.