Finding the Fourth Proportional to 1,091,845,246.40, 1,637,767,869.60 and 724,513,227.20
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Solution
The fourth proportional to 1,091,845,246.40, 1,637,767,869.60 and 724,513,227.20 is: 1,086,769,840.80
Step by Step Solution
- Step 1: Write the proportion equation
1,091,845,246.40 : 1,637,767,869.60 = 724,513,227.20 : x - Step 2: Convert to fraction form
1,091,845,246.40/1,637,767,869.60 = 724,513,227.20/x - Step 3: Cross multiply
1,091,845,246.40x = 1,637,767,869.60 × 724,513,227.20 - Step 4: Simplify right side
1,091,845,246.40x = 1,186,584,484,608,364,800 - Step 5: Solve for x
x = 1,186,584,484,608,364,800/1,091,845,246.40 - Step 6: Final answer
x = 1,086,769,840.80
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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.