Finding the Fourth Proportional to 965,436,089.60, 1,448,154,134.40 and 578,452,563.20
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Solution
The fourth proportional to 965,436,089.60, 1,448,154,134.40 and 578,452,563.20 is: 867,678,844.80
Step by Step Solution
- Step 1: Write the proportion equation
965,436,089.60 : 1,448,154,134.40 = 578,452,563.20 : x - Step 2: Convert to fraction form
965,436,089.60/1,448,154,134.40 = 578,452,563.20/x - Step 3: Cross multiply
965,436,089.60x = 1,448,154,134.40 × 578,452,563.20 - Step 4: Simplify right side
965,436,089.60x = 837,688,470,952,357,376 - Step 5: Solve for x
x = 837,688,470,952,357,376/965,436,089.60 - Step 6: Final answer
x = 867,678,844.80
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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.