Finding the Fourth Proportional to 1,372,510,807.14, 1,894,084,095.69 and 745,979,047.14
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Solution
The fourth proportional to 1,372,510,807.14, 1,894,084,095.69 and 745,979,047.14 is: 1,029,461,510.65
Step by Step Solution
- Step 1: Write the proportion equation
1,372,510,807.14 : 1,894,084,095.69 = 745,979,047.14 : x - Step 2: Convert to fraction form
1,372,510,807.14/1,894,084,095.69 = 745,979,047.14/x - Step 3: Cross multiply
1,372,510,807.14x = 1,894,084,095.69 × 745,979,047.14 - Step 4: Simplify right side
1,372,510,807.14x = 1,412,947,048,905,854,720 - Step 5: Solve for x
x = 1,412,947,048,905,854,720/1,372,510,807.14 - Step 6: Final answer
x = 1,029,461,510.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.