Finding the Fourth Proportional to 1,651,781,965, 2,279,519,259.67 and 899,058,785.06
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Solution
The fourth proportional to 1,651,781,965, 2,279,519,259.67 and 899,058,785.06 is: 1,240,733,861.70
Step by Step Solution
- Step 1: Write the proportion equation
1,651,781,965 : 2,279,519,259.67 = 899,058,785.06 : x - Step 2: Convert to fraction form
1,651,781,965/2,279,519,259.67 = 899,058,785.06/x - Step 3: Cross multiply
1,651,781,965x = 2,279,519,259.67 × 899,058,785.06 - Step 4: Simplify right side
1,651,781,965x = 2,049,421,816,119,780,864 - Step 5: Solve for x
x = 2,049,421,816,119,780,864/1,651,781,965 - Step 6: Final answer
x = 1,240,733,861.70
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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.