Finding the Fourth Proportional to 455,088,363.76, 627,912,724.95 and 276,468,681.70
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Solution
The fourth proportional to 455,088,363.76, 627,912,724.95 and 276,468,681.70 is: 381,460,430.79
Step by Step Solution
- Step 1: Write the proportion equation
455,088,363.76 : 627,912,724.95 = 276,468,681.70 : x - Step 2: Convert to fraction form
455,088,363.76/627,912,724.95 = 276,468,681.70/x - Step 3: Cross multiply
455,088,363.76x = 627,912,724.95 × 276,468,681.70 - Step 4: Simplify right side
455,088,363.76x = 173,598,203,289,581,216 - Step 5: Solve for x
x = 173,598,203,289,581,216/455,088,363.76 - Step 6: Final answer
x = 381,460,430.79
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.