Finding the Fourth Proportional to 884,952,907.84, 1,221,235,132.36 and 488,475,972.23
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Solution
The fourth proportional to 884,952,907.84, 1,221,235,132.36 and 488,475,972.23 is: 674,096,907.65
Step by Step Solution
- Step 1: Write the proportion equation
884,952,907.84 : 1,221,235,132.36 = 488,475,972.23 : x - Step 2: Convert to fraction form
884,952,907.84/1,221,235,132.36 = 488,475,972.23/x - Step 3: Cross multiply
884,952,907.84x = 1,221,235,132.36 × 488,475,972.23 - Step 4: Simplify right side
884,952,907.84x = 596,544,018,594,584,576 - Step 5: Solve for x
x = 596,544,018,594,584,576/884,952,907.84 - Step 6: Final answer
x = 674,096,907.65
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Double scale
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1.5x scale
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.