Finding the Fourth Proportional to 568,346,309.36, 784,309,628.05 and 317,454,271.28
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Solution
The fourth proportional to 568,346,309.36, 784,309,628.05 and 317,454,271.28 is: 438,082,270.14
Step by Step Solution
- Step 1: Write the proportion equation
568,346,309.36 : 784,309,628.05 = 317,454,271.28 : x - Step 2: Convert to fraction form
568,346,309.36/784,309,628.05 = 317,454,271.28/x - Step 3: Cross multiply
568,346,309.36x = 784,309,628.05 × 317,454,271.28 - Step 4: Simplify right side
568,346,309.36x = 248,982,441,425,785,408 - Step 5: Solve for x
x = 248,982,441,425,785,408/568,346,309.36 - Step 6: Final answer
x = 438,082,270.14
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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.