Finding the Fourth Proportional to 440,435,710.68, 607,804,442.58 and 239,491,145.12
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Solution
The fourth proportional to 440,435,710.68, 607,804,442.58 and 239,491,145.12 is: 330,499,499.54
Step by Step Solution
- Step 1: Write the proportion equation
440,435,710.68 : 607,804,442.58 = 239,491,145.12 : x - Step 2: Convert to fraction form
440,435,710.68/607,804,442.58 = 239,491,145.12/x - Step 3: Cross multiply
440,435,710.68x = 607,804,442.58 × 239,491,145.12 - Step 4: Simplify right side
440,435,710.68x = 145,563,781,959,468,480 - Step 5: Solve for x
x = 145,563,781,959,468,480/440,435,710.68 - Step 6: Final answer
x = 330,499,499.54
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.