Finding the Fourth Proportional to 610,025,765.99, 842,240,960.82 and 468,645,188.36
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Solution
The fourth proportional to 610,025,765.99, 842,240,960.82 and 468,645,188.36 is: 647,041,806.65
Step by Step Solution
- Step 1: Write the proportion equation
610,025,765.99 : 842,240,960.82 = 468,645,188.36 : x - Step 2: Convert to fraction form
610,025,765.99/842,240,960.82 = 468,645,188.36/x - Step 3: Cross multiply
610,025,765.99x = 842,240,960.82 × 468,645,188.36 - Step 4: Simplify right side
610,025,765.99x = 394,712,173,723,785,088 - Step 5: Solve for x
x = 394,712,173,723,785,088/610,025,765.99 - Step 6: Final answer
x = 647,041,806.65
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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.