Finding the Fourth Proportional to 708,135,044.56, 977,229,399.61 and 386,270,025.75
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Solution
The fourth proportional to 708,135,044.56, 977,229,399.61 and 386,270,025.75 is: 533,054,292.75
Step by Step Solution
- Step 1: Write the proportion equation
708,135,044.56 : 977,229,399.61 = 386,270,025.75 : x - Step 2: Convert to fraction form
708,135,044.56/977,229,399.61 = 386,270,025.75/x - Step 3: Cross multiply
708,135,044.56x = 977,229,399.61 × 386,270,025.75 - Step 4: Simplify right side
708,135,044.56x = 377,474,425,349,667,200 - Step 5: Solve for x
x = 377,474,425,349,667,200/708,135,044.56 - Step 6: Final answer
x = 533,054,292.75
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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.