Finding the Fourth Proportional to 558,974,059.37, 771,352,724.03 and 308,077,690.99
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Solution
The fourth proportional to 558,974,059.37, 771,352,724.03 and 308,077,690.99 is: 425,129,864.57
Step by Step Solution
- Step 1: Write the proportion equation
558,974,059.37 : 771,352,724.03 = 308,077,690.99 : x - Step 2: Convert to fraction form
558,974,059.37/771,352,724.03 = 308,077,690.99/x - Step 3: Cross multiply
558,974,059.37x = 771,352,724.03 × 308,077,690.99 - Step 4: Simplify right side
558,974,059.37x = 237,636,566,155,982,720 - Step 5: Solve for x
x = 237,636,566,155,982,720/558,974,059.37 - Step 6: Final answer
x = 425,129,864.57
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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.