Finding the Fourth Proportional to 680,367,839.24, 1,020,947,848.52 and 286,869,990.26
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Solution
The fourth proportional to 680,367,839.24, 1,020,947,848.52 and 286,869,990.26 is: 430,471,992.45
Step by Step Solution
- Step 1: Write the proportion equation
680,367,839.24 : 1,020,947,848.52 = 286,869,990.26 : x - Step 2: Convert to fraction form
680,367,839.24/1,020,947,848.52 = 286,869,990.26/x - Step 3: Cross multiply
680,367,839.24x = 1,020,947,848.52 × 286,869,990.26 - Step 4: Simplify right side
680,367,839.24x = 292,879,299,354,361,280 - Step 5: Solve for x
x = 292,879,299,354,361,280/680,367,839.24 - Step 6: Final answer
x = 430,471,992.45
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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.