Finding the Fourth Proportional to 2,155,396,988.20, 3,233,095,482.30 and 1,937,293,601.80
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Solution
The fourth proportional to 2,155,396,988.20, 3,233,095,482.30 and 1,937,293,601.80 is: 2,905,940,402.70
Step by Step Solution
- Step 1: Write the proportion equation
2,155,396,988.20 : 3,233,095,482.30 = 1,937,293,601.80 : x - Step 2: Convert to fraction form
2,155,396,988.20/3,233,095,482.30 = 1,937,293,601.80/x - Step 3: Cross multiply
2,155,396,988.20x = 3,233,095,482.30 × 1,937,293,601.80 - Step 4: Simplify right side
2,155,396,988.20x = 6,263,455,191,868,275,712 - Step 5: Solve for x
x = 6,263,455,191,868,275,712/2,155,396,988.20 - Step 6: Final answer
x = 2,905,940,402.70
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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.