Finding the Fourth Proportional to 2,165,244,854.45, 3,249,233,510.58 and 921,673,288.13
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Solution
The fourth proportional to 2,165,244,854.45, 3,249,233,510.58 and 921,673,288.13 is: 1,383,091,490.75
Step by Step Solution
- Step 1: Write the proportion equation
2,165,244,854.45 : 3,249,233,510.58 = 921,673,288.13 : x - Step 2: Convert to fraction form
2,165,244,854.45/3,249,233,510.58 = 921,673,288.13/x - Step 3: Cross multiply
2,165,244,854.45x = 3,249,233,510.58 × 921,673,288.13 - Step 4: Simplify right side
2,165,244,854.45x = 2,994,731,733,582,205,440 - Step 5: Solve for x
x = 2,994,731,733,582,205,440/2,165,244,854.45 - Step 6: Final answer
x = 1,383,091,490.75
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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.