Finding the Fourth Proportional to 696,403,482.92, 961,036,774.10 and 383,130,970.84
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Solution
The fourth proportional to 696,403,482.92, 961,036,774.10 and 383,130,970.84 is: 528,720,721.97
Step by Step Solution
- Step 1: Write the proportion equation
696,403,482.92 : 961,036,774.10 = 383,130,970.84 : x - Step 2: Convert to fraction form
696,403,482.92/961,036,774.10 = 383,130,970.84/x - Step 3: Cross multiply
696,403,482.92x = 961,036,774.10 × 383,130,970.84 - Step 4: Simplify right side
696,403,482.92x = 368,202,952,273,874,752 - Step 5: Solve for x
x = 368,202,952,273,874,752/696,403,482.92 - Step 6: Final answer
x = 528,720,721.97
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.