Finding the Fourth Proportional to 315,022,688.70, 472,392,315.45 and 120,869,576.70
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Solution
The fourth proportional to 315,022,688.70, 472,392,315.45 and 120,869,576.70 is: 181,249,990.09
Step by Step Solution
- Step 1: Write the proportion equation
315,022,688.70 : 472,392,315.45 = 120,869,576.70 : x - Step 2: Convert to fraction form
315,022,688.70/472,392,315.45 = 120,869,576.70/x - Step 3: Cross multiply
315,022,688.70x = 472,392,315.45 × 120,869,576.70 - Step 4: Simplify right side
315,022,688.70x = 57,097,859,204,774,368 - Step 5: Solve for x
x = 57,097,859,204,774,368/315,022,688.70 - Step 6: Final answer
x = 181,249,990.09
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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.