Finding the Fourth Proportional to 2,935,688,744.80, 4,403,533,117.20 and 996,991,976.80
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Solution
The fourth proportional to 2,935,688,744.80, 4,403,533,117.20 and 996,991,976.80 is: 1,495,487,965.20
Step by Step Solution
- Step 1: Write the proportion equation
2,935,688,744.80 : 4,403,533,117.20 = 996,991,976.80 : x - Step 2: Convert to fraction form
2,935,688,744.80/4,403,533,117.20 = 996,991,976.80/x - Step 3: Cross multiply
2,935,688,744.80x = 4,403,533,117.20 × 996,991,976.80 - Step 4: Simplify right side
2,935,688,744.80x = 4,390,287,187,421,493,760 - Step 5: Solve for x
x = 4,390,287,187,421,493,760/2,935,688,744.80 - Step 6: Final answer
x = 1,495,487,965.20
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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.