Finding the Fourth Proportional to 977,764,568.10, 1,466,646,852.15 and 518,599,544.10
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Solution
The fourth proportional to 977,764,568.10, 1,466,646,852.15 and 518,599,544.10 is: 777,899,316.15
Step by Step Solution
- Step 1: Write the proportion equation
977,764,568.10 : 1,466,646,852.15 = 518,599,544.10 : x - Step 2: Convert to fraction form
977,764,568.10/1,466,646,852.15 = 518,599,544.10/x - Step 3: Cross multiply
977,764,568.10x = 1,466,646,852.15 × 518,599,544.10 - Step 4: Simplify right side
977,764,568.10x = 760,602,388,880,690,176 - Step 5: Solve for x
x = 760,602,388,880,690,176/977,764,568.10 - Step 6: Final answer
x = 777,899,316.15
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Half scale
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Double scale
Find fourth proportional to 977,764,569.10, 1,466,646,853.65 and 518,599,545.10
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.