Finding the Fourth Proportional to 946,769,216.76, 1,306,543,289.28 and 529,081,502.52
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Solution
The fourth proportional to 946,769,216.76, 1,306,543,289.28 and 529,081,502.52 is: 730,133,462.69
Step by Step Solution
- Step 1: Write the proportion equation
946,769,216.76 : 1,306,543,289.28 = 529,081,502.52 : x - Step 2: Convert to fraction form
946,769,216.76/1,306,543,289.28 = 529,081,502.52/x - Step 3: Cross multiply
946,769,216.76x = 1,306,543,289.28 × 529,081,502.52 - Step 4: Simplify right side
946,769,216.76x = 691,267,886,599,685,376 - Step 5: Solve for x
x = 691,267,886,599,685,376/946,769,216.76 - Step 6: Final answer
x = 730,133,462.69
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Double scale
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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.