Finding the Fourth Proportional to 7,954,779,686.99, 11,934,196,313.58 and 2,358,921,190.59
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Solution
The fourth proportional to 7,954,779,686.99, 11,934,196,313.58 and 2,358,921,190.59 is: 3,538,982,810.90
Step by Step Solution
- Step 1: Write the proportion equation
7,954,779,686.99 : 11,934,196,313.58 = 2,358,921,190.59 : x - Step 2: Convert to fraction form
7,954,779,686.99/11,934,196,313.58 = 2,358,921,190.59/x - Step 3: Cross multiply
7,954,779,686.99x = 11,934,196,313.58 × 2,358,921,190.59 - Step 4: Simplify right side
7,954,779,686.99x = 28,151,828,576,764,923,904 - Step 5: Solve for x
x = 28,151,828,576,764,923,904/7,954,779,686.99 - Step 6: Final answer
x = 3,538,982,810.90
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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.