Finding the Fourth Proportional to 697,572,759.30, 1,046,359,138.95 and 465,120,465.90
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Solution
The fourth proportional to 697,572,759.30, 1,046,359,138.95 and 465,120,465.90 is: 697,680,698.85
Step by Step Solution
- Step 1: Write the proportion equation
697,572,759.30 : 1,046,359,138.95 = 465,120,465.90 : x - Step 2: Convert to fraction form
697,572,759.30/1,046,359,138.95 = 465,120,465.90/x - Step 3: Cross multiply
697,572,759.30x = 1,046,359,138.95 × 465,120,465.90 - Step 4: Simplify right side
697,572,759.30x = 486,683,050,207,146,816 - Step 5: Solve for x
x = 486,683,050,207,146,816/697,572,759.30 - Step 6: Final answer
x = 697,680,698.85
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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.