Finding the Fourth Proportional to 7,243,391,919.40, 10,865,087,879.10 and 3,937,403,746.60
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Solution
The fourth proportional to 7,243,391,919.40, 10,865,087,879.10 and 3,937,403,746.60 is: 5,906,105,619.90
Step by Step Solution
- Step 1: Write the proportion equation
7,243,391,919.40 : 10,865,087,879.10 = 3,937,403,746.60 : x - Step 2: Convert to fraction form
7,243,391,919.40/10,865,087,879.10 = 3,937,403,746.60/x - Step 3: Cross multiply
7,243,391,919.40x = 10,865,087,879.10 × 3,937,403,746.60 - Step 4: Simplify right side
7,243,391,919.40x = 42,780,237,722,306,584,576 - Step 5: Solve for x
x = 42,780,237,722,306,584,576/7,243,391,919.40 - Step 6: Final answer
x = 5,906,105,619.90
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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.