Finding the Fourth Proportional to 906,390,102.70, 1,359,585,154.05 and 724,991,574.70
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Solution
The fourth proportional to 906,390,102.70, 1,359,585,154.05 and 724,991,574.70 is: 1,087,487,362.05
Step by Step Solution
- Step 1: Write the proportion equation
906,390,102.70 : 1,359,585,154.05 = 724,991,574.70 : x - Step 2: Convert to fraction form
906,390,102.70/1,359,585,154.05 = 724,991,574.70/x - Step 3: Cross multiply
906,390,102.70x = 1,359,585,154.05 × 724,991,574.70 - Step 4: Simplify right side
906,390,102.70x = 985,687,781,773,451,648 - Step 5: Solve for x
x = 985,687,781,773,451,648/906,390,102.70 - Step 6: Final answer
x = 1,087,487,362.05
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Double scale
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Similar ratio
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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.