Finding the Fourth Proportional to 1,010,642,606.70, 1,515,963,910.05 and 244,737,710.70
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Solution
The fourth proportional to 1,010,642,606.70, 1,515,963,910.05 and 244,737,710.70 is: 367,106,566.05
Step by Step Solution
- Step 1: Write the proportion equation
1,010,642,606.70 : 1,515,963,910.05 = 244,737,710.70 : x - Step 2: Convert to fraction form
1,010,642,606.70/1,515,963,910.05 = 244,737,710.70/x - Step 3: Cross multiply
1,010,642,606.70x = 1,515,963,910.05 × 244,737,710.70 - Step 4: Simplify right side
1,010,642,606.70x = 371,013,536,849,457,664 - Step 5: Solve for x
x = 371,013,536,849,457,664/1,010,642,606.70 - Step 6: Final answer
x = 367,106,566.05
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Double scale
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Similar ratio
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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.