Finding the Fourth Proportional to 2,139,546,457.04, 3,209,539,583.16 and 740,528,439.80
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Solution
The fourth proportional to 2,139,546,457.04, 3,209,539,583.16 and 740,528,439.80 is: 1,110,868,769.49
Step by Step Solution
- Step 1: Write the proportion equation
2,139,546,457.04 : 3,209,539,583.16 = 740,528,439.80 : x - Step 2: Convert to fraction form
2,139,546,457.04/3,209,539,583.16 = 740,528,439.80/x - Step 3: Cross multiply
2,139,546,457.04x = 3,209,539,583.16 × 740,528,439.80 - Step 4: Simplify right side
2,139,546,457.04x = 2,376,755,339,993,817,088 - Step 5: Solve for x
x = 2,376,755,339,993,817,088/2,139,546,457.04 - Step 6: Final answer
x = 1,110,868,769.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.